Mufflers

[Nacho-RT74]

Hi Guys... I don't remember If I asked this in the past, but wondering. New year is coming down so Will have access to buy some stuff from USA again. I'm practically done really just some extra details.

My stock mufflers are allmost done, making some weird noises, so will need to replace them. Need some advices about.

I'm already with 2.5 pipes from end to end, dual without any H or X conection.

I'm searching fro good relioable and cheap options to get a nice "round" sound, nothing like a "slappy" sound, Nothing disturbing but deep and nice sound atht makes feel you are on a muscle car.

the engine setup as many of you knows WILL BE with 280/474 MP cam, stock HP manifolds and some porting job on heads.

PPl down here is allways toward to flowmasters, and in fact you can find those locally ( not cheap, very expensive really ). A guy is offering a series 40 set that he just installed once and run couple of times but had to remove for some reason ( dunno why ). Some ppl advices me better on series 50 or even 70. But still dunno about FM

what could I get on a cheap line with the kind of sound I'm searching? I dunno if compare it with some sound like the Modern mustangs, but of course more to classic mopar sound.

thanks.

[R2]

2 chamber, 40 series flow-masters are loud..... all depends on the sound you are looking for.....I actually like them,,,,but they can be a bit obnoxious/loud inside the car.
I have some dynomax muff's on the car now,,,,


here is a little clip i found..........( not mine )


http://www.youtube.com/watch?v=rA3bL3cTQws&feature=related

http://www.youtube.com/watch?v=zgz3x1w71qs&feature=related

http://www.youtube.com/watch?v=YqMgqRWb0kA&feature=related

[Cooter]

IMO, There's only one muffler...Flowmaster...In any flavor, they are the muffler..I agree that they have been overdone to a degree, but I just finished a RoadRunner for a customer in Wis. and he ask'd if I could "try" my 2 Chamber 40 series on the cars 3" exhaust to see if he liked them...
I fired it up with them cobbled on there and he said it was a little on the "loud" side for his taste...We stuck the TTI DynoMax mufflers on it and he seemed happy....Got a call from him the other day and told me that he thought I was right and he just had a set of those "Too loud" Flowmasters installed anyway cause the DynoMax mufflers didn't "bring the Noise" Like he actually wanted once the car was home..I will say the the DynoMax mufflers didn't sound bad for a "Change", but they just ain't Flowmasters....

[greenpigs]

Some of what I have seen say flo masters are not the best flowing muffler. I got some Dyno Max ultra flo's and have not fired it up yet but BacknBlack posted a link of his Charger with them. I'll try to find the link[/color].//www.youtube.com/watch?v=rkwtlBhWDc4]http://www.youtube.com/watch?v=rkwtlBhWDc4 Sure its just idling but it sounds good...tone and loudness.

[FLG]

After switching from 40's to Pypes violator series ive been very happy. No annoying drone!!

They seem pretty quiet at idle to me, but really wake up under some throttle.

http://www.youtube.com/watch?v=UKxQuMaDIEQ

Ill try to get a higher quality video soon. Damn snow!

[miller]

Here is a vid of my new exhaust system, headman headers, 2.5 Dynomax ultra flow, and a universal summit x pipe. I think it has a burly but not screechy tone. It may be too quiet for some peoples tastes though, it does get loud after the first couple trips out.

http://www.youtube.com/watch?v=AxN23wfw-Zs

[R2]

Are you guys running tail pipes,, ,all the way out to the rear of the car/bumper ?,,, , or are you running "dumps" under the car,,,,fore of the rear end ?

I have dynomax ultra-flows now,,,,with a TTI 3" tail pipe,,,,but my ultraflows are going "bad",,,ie,,,the casing is coming apart,, ,and they are now leaking H2O, ,,etc,,,from the middle of the muffler....so,,,they need to be replaced,,,,,

Just wondering if i want to run tail pipes any more,,,,( i had dumps on there in the past,,,, ),,,, it is impossible to get the exhaust off to work on the car,,,everything is welded up,,,

[greenpigs]

No tailpipes and 50/50 if I get some.

[R2]

What are you guys running for inlet / outlet ?? on your muff's,,,ie,,,,

is the inlet offset,,,and the outlet centered ?

is this WITH tailpipes ?

thanks,

[greenpigs]

Offset inlet and offset outlet and its close to third member.  I have over a foot clearance at outlet of mufflers. 

[Ronnman]

Another thing to consider is flow.  See attached chart for comparisions.  My experience is that every car fitted with Flowmater 40 series had a bad drone at 1500 to 1800 rpm.  That itself is enough the give you a headache while driving for over 15 minutes.  Here is a short video of the interior sound  http://www.youtube.com/watch?v=NFQ2N0mBct8
Ron

[R2]

YIKES............

what is with the flow numbers on the Flowmasters ( in the 50% range ??,),,,that sucks compared to the dynomax .( in the high 90% range)....  that was a eyeopener...

I was considering a change over to the flowmasters,,,not sure now........may just replace my Dynomax's.... 

[b5blue]

This is like beer or booze it's all subjective...the variables in car set up and use are infinite. Myself for a daily driver that may take extended long range trips lasting hours.....bone stock with the thickest pipe available hung the factory way for durability....if any mod...X pipe as it seems a +. Just my    

[Ronnman]

Firefighter3931 (Ron) recommends the ultraflow welded mufflers.  You are right mufflers are very subjective.  I listened to a lot of youtube videos, peoples cars and educated myself before I decided on the Ultraflow welded mufflers.  I was leaning toward the dynomax super turbos but chosed the Ultraflows because of their higher flow numbers and better construction.
Ron

[Cooter]

It kills me that some want Awesome acceleration, but don't want to drive 45 MPH all the time...They want that "killer" sound, but don't want to deal with interior resonance...I've found that one thing positive, usually leaves a couple things for a trade off.....Yes, Flowmasters have a drone at 1800 RPM's....This is only if you are running 2.97 gears at 65 MPH....If you have ANY gear in the car at all, you will be above 1800 At cruise anyway IMO...


I don't know bout you guys, but I actually WANT the person in the other lane to KNOW thta there's an engine to match the reputation these cars have in the public's eye when they pull along side it at 1800 RPM's....There's something to be said for "Sleepers", but face it, when you have "Paid the cost to be the boss" with a 540 Cu.IN. engine, I'd think you'd want to be a little obnoxious with the noise when that soccer mom pulls along side and says "Look kids, there's one of those cars like Daddy wants to play with one day"...

[Ghoste]

In that case why not just run open headers all the time?  I like the Dynomax myself and I love the fact that they can offer better performance without a drone on the highway (because I don't just drive around town looking for soccer moms to offend with my loud idle).  Of course I don't have 2.97's, I run 4.10's in the car so that could be why there is no drone? 
My cars sound is more than easy enough to notice without sacrificing performance and I'm not out driving around hoping everyone is looking ate anyway.  The only one I worry about impressing is myself.

[grdprx]

Are you guys running tail pipes,, ,all the way out to the rear of the car/bumper ?,,, , or are you running "dumps" under the car,,,,fore of the rear end ?

I have dynomax ultra-flows now,,,,with a TTI 3" tail pipe,,,,but my ultraflows are going "bad",,,ie,,,the casing is coming apart,, ,and they are now leaking H2O, ,,etc,,,from the middle of the muffler....so,,,they need to be replaced,,,,,

Just wondering if i want to run tail pipes any more,,,,( i had dumps on there in the past,,,, ),,,, it is impossible to get the exhaust off to work on the car,,,everything is welded up,,,

I had wondered if there was any advantace to the dumps, or running a tail pipe.  Is there an advantage?   Also, are Magnaflow mufflers not the muffler of choise now?  One of the local exhaust shops actually suggested buying the mufflers myself, said they don't get the discount they used to, so I'd be paying their markup if I bought from them...  Nice of them suggesting that, I thought!

[Cooter]

Now you want to talk about LOUD, not to mention illeagal for State inspection here in VA, Running "Dumps" right behind the mufflers makes the mufflers LOUD!

As a rule of thumb, I've found the longer the piping Behind the muffler, the "Raspier" the exhaust tends to be...I have 2 Chamber Flows on Christine with at least 6 FT tailpipes and it sounds like a set of Glasspacks on it...

[R2]

grd,,,,
I usually BRING everything to the muffler shop that i can,,,,and have them install it,,,usually you can find/get the mufflers,,etc,,,yourself cheaper......

Not sure if there is a "advantage" to running dumps,,,over tailpipes,,,, the tailpipes will quiet it down,,,but not sure if there is a significant performance difference.....

[Al]

Got Flowmaster 40 in my 383 Charger. Yes there is a drone, noticeable but not obnoxious. But there is also the sound: pure beasty power like King Kong roaring. Very noticeable. I wouldn't change them for any other muffler.

[CB]

Got Flowmaster 40 in my 383 Charger. Yes there is a drone, noticeable but not obnoxious. But there is also the sound: pure beasty power like King Kong roaring. Very noticeable. I wouldn't change them for any other muffler.

same here
wondering if I could go for the side exhaust or dumps, I need to loose the ugly gay tail pipes on mine

[Nacho-RT74]

interesting opinions here... thanks.

Yes I know the noise is quite subjective. Recorded sound is also hard to define. Lot of variables there to completely trust on that, but is at least an aprox

are you pro FM 40s users guys talking with headers or HP manifolds ? I read about 50 series is quite the same than 40 series performance but quieter

I'm worry about anoying noise inside cab and at iddle and warming engine moments outside the cab ( living on a building thats a big deal ). Don't care too much about noise above 2000-2500 RPMs for a while is comfortable inside the cab.

I don't care muscle car sound warming engine or idle but not anoying...

I know is hard to get everything there in one muffler model

of course 2.5" pipes, with center and offset outlets.

I wasn't thinking on X or H deal really

[Nacho-RT74]

is there somebody with Series 50 delta flow on a mild BB ( not RB ) or similar in another brand, to show a clip ?

I have found at Youtube some stuff, but all 440s, some with TTIs and 3"... and a truck with 400 but dual in/out setup

[Nacho-RT74]

does somebody know about SDT Edelbrock mufflers ? ( summint have them lowered from $144 to $90 )

[Nacho-RT74]

wow... Jones mufflers sounds good... well in a very diff car too

http://www.youtube.com/watch?v=hdKusQlQf-k

[Nacho-RT74]

Here is a vid of my new exhaust system, headman headers, 2.5 Dynomax ultra flow, and a universal summit x pipe. I think it has a burly but not screechy tone. It may be too quiet for some peoples tastes though, it does get loud after the first couple trips out.

http://www.youtube.com/watch?v=AxN23wfw-Zs

what's that one ? I mean the PN ?

[c00nhunterjoe]

i ran 3 inch flowmaster 40's through headers for a long time. they sound great, perform great but if you are building a car to cruise then i would go with a different series. the car was no fun to drive after 15 or 20 minutes. you had a headache from the sound and could not hold a conversation with the guy in the front seat. you literaly had to scream at each other to hear anything over the mufflers. 

i changed over to the flowmaster 50 series suv mufflers. they are incredible. car runs great on them, no issues with performance, they have the flowmaster sound but are also unique as well. the cruise levels are very mild and quiet, virtually no drone (below my cruise rpm), and when you stand on the throttle they get nice and loud.

here are a few videos, the 40 series banging gears is with the windows up, the 50 series suv test drive is with the windows down.

40 series- http://www.youtube.com/watch?v=mL2-43vYDYs
              http://www.youtube.com/watch?v=IqkLPXXrohw


50 series suv-  http://www.youtube.com/watch?v=j6pvgS9xf9Q
                      http://www.youtube.com/watch?v=gQegbFH38s8

[Nacho-RT74]

yes those are exactly my thoughts about 40s...

should it be some diff between SUV and Delta flow what you are aware ? beside the thick since I remmeber on specs SUV are thicker, I mean about the sound

[c00nhunterjoe]

the suv's are quieter then the delta flows, have a little different tone and the case size is longer and taller then a delta flow. might be longer, not sure offhand. the 50 series suv is a large muffler.

[Purple440]

My flowmaster 50's are too loud.  Looking forward to some Dynomax Ultra's to fix that and increase flow.  Already have the x-pipe.

- Doug

[mikepmcs]

After switching from 40's to Pypes violator series ive been very happy. No annoying drone!!

They seem pretty quiet at idle to me, but really wake up under some throttle.

http://www.youtube.com/watch?v=UKxQuMaDIEQ

Ill try to get a higher quality video soon. Damn snow!

Frank, I was under the impression that your car was still in Mass.  Are you waiting on me to get the chunk to you so you can get the 8.75 in there.  Let me know and I'll step up my program a little.  I really thought it was getting body work done at Chuck and Blair's still.  My bad.
Mike

And my vote on the mufflers is Dynomax all the way.  Flowcrapsters are restrictive.

[Nacho-RT74]

what Dinomax model under the requirements I'm searching ?

and Frank... what specifically are those ?

[FLG]

Mike, you have a PM!


Nacho,

They are made by "Pypes" and they are the "Violator Series" mufflers.

Im working on getting a better vid, only have the one i posted and this one

http://www.youtube.com/watch?v=gRu9ArM31-Y

As you can see..under some throttle you can hear em...but when i let off there is really more wind from my bad door seals than the mufflers. If you listen till the very end you can even clearly hear my buddy who was sleeping in the back say "That woke my a$$ up"

[Nacho-RT74]

visited their website and wow, is a good option too.

How much cost at your dealer ? Summit have them on $59, Racers too ( street pro on $46.5 )

Jones are on $40

[Runner]

Yes, Flowmasters have a drone at 1800 RPM's....This is only if you are running 2.97 gears at 65 MPH....If you have ANY gear in the car at all, you will be above 1800 At cruise anyway IMO...


I

i had 4.57 gears and a 3800 stall and the drone was absolutly terrible.   plus every time i got on the car i had to be scared that i alerted every cop in town.    my wife wore ear plugs in the car and we couldnt even carry on a conversation.    man im glad those things are gone.

    i now have 3 inch exhaust going into 2.5 inch dynomax super turbos with an h pipe and at the track i use race bullets right off the headers.   the race bullets sound soooo good but our to loud for street use imo.       most of the rest of our cars is 2.5 inch exhaust into summit turbos , they sound decent, the dart has 2.5's into flowtech terminators, they are a little louder than the summit mufflers and have a diffeent sound.   my wife likes them and i think they are ok

[Brass]

A little late to this thread - but I'm wondering why glasspacks don't seem to be considered that much any more.  They're a straight-through design, and sound deep and savage.  (Especially when they dump at the rear axles.)  They still seem like a viable option.  I'd be running them that way if I could stand to butcher my tail pipes.  But I can't - so I went with the round style of welded ultra flos.  Based mostly on what I learned on this site.  I needed the mufflers to be as minimally restrictive as possible because I'm not running headers.  The flowmasters do sound tough in those clips though. 

[Nacho-RT74]

not late yet...

[TexasStroker]

It sounds like you are looking for something slightly better than stock...Something that is quiet when it should be, but can turn heads when you want to get on it...

I'd suggest you run some Dynomax Super Turbos.  These are the old standard and sound like they fit the bill for what you are wanting to do and most importantly they will not break the bank.

There tend to be 3 camps to muffler subjectivity:

1-Flow (ple that care about cfms and HP and could give a care less if that is 2 db less than open headers or makes a big hyd cammed 440 sound docile...whatever makes the car faster on the track is ideal).

2-Loud (ple that put overall performance and ETs on a backseat to sound...and in this case they want it loud...the louder the better).

3-Not too loud (anyone that says this should just stick to stock type mufflers or something along the lines of the dynomax super turbo...the last thing you want to do is spend $$ on a set of mufflres that you are going to hate driving around with).

Personally I value performance with a particular partiality to the louder side of the spectrum    It works for me and it is what I want and expect from what I have.  Should I ever acquire a Mopar, say a Slant Six 66 Barracuda, that doesn't fit the bill for what I think should sound like a fire breathing monster, I will go with something deathly silent.  It all comes down to the individual and what they want and will tolerate from their exhaust system.  There are always trade-offs and the important thing is that you get it right the first time so you don't sink unnecessary money in the project.

Based on what you've said I would strongly suggest you at least consider the Dynomax Superturbo.

[Nacho-RT74]

It sounds like you are looking for something slightly better than stock...Something that is quiet when it should be, but can turn heads when you want to get on it...

yes you got it

[TexasStroker]

It sounds like you are looking for something slightly better than stock...Something that is quiet when it should be, but can turn heads when you want to get on it...

yes you got it

Then you should look into Dynomax SuperTurbos 

[Nacho-RT74]

Ok... there are some that I like a lot ( Jones, Dynomax super turbos or thrust turbos, Violators by Pypes, Flowmasters 50 ). I have heard with attention all your advices and I liked several options... I'm trying to get first at local market first. There is one dealer offering the Raptor series by Flowtech... what do you think ?

they are on a more less decent price for the local market ( I can get allmost two of these by the price the thie... I meant, exhaust shops    sells one Flowmaster )

[R2]

How big of a difference do you guys think between the Flowmaster 40's.,,,,,, and the 50's,,,,, ??

[R2]

anyone ?

[FLG]

Nacho heres a quick video i made last night.

Will do another one soon. Was playing with the new phone (DROID, awesome btw) and uploaded it straight to youtube. Worked out well, you just cant see anything LOL!

Think you get a better idea of the sound, though not quite. I will be recording one on saturday with in nice hi def.

http://www.youtube.com/watch?v=_5ICjmMa4x4

[Corellian Corvette]

I have used a variety of mufflers on a variety of V8's so it's hard to give a direct comparison. I have Magnaflow's on my 73 Vette with a 383ci Stroker. I have Flowmaster 40's on my 66 Buick 300ci. I have Edelbrock SDT's on my Olds 442 with a 400ci. On my 68 Charger with 470ci Stoker, I have Accurate's "Hemi" mufflers. I have Dynomax on my 65 Mustang, but it's only a 6.

For me, the best exhaust is something that has a powerful bark when I stomp the throttle, but a mellow, quiter "growl" at idle an cruise. I'm very sensitive to higher pitches or tinny sounds. A mellow, low grumble is the best as far as I'm concerned. Any exhaust that sounds good is going to have some drone. The issue is volume and resonance. Frankly, I don't mind a little drone at idle, but I wouldn't put up with something too overpowering.

Without a doubt, my two recommendations are the Magnaflows or the Accurate HEMI mufflers. Both of them are awesome. They have a TON of presence when you stomp the throttle, have a great idle sound, but are mellow at cruise. The HEMI mufflers have a little bit more drone, but the frequency doesn't bother me. The Magnaflow drone I find to be more mellow. But I would rank #1 the Hemi and #2 the Magnaflow.

The Flowmasters are nice – but Flowmasters are like Torq Thrust wheels. Nobody is going to fault you for buying them, but everyone's got them. They sound fine, good traditional muscle car sound, but they don't have a ton of presence. If you want something a little more mellow, but with some personality, I would actually recommend the Edelbrock SDT's. They are a TINGE louder the Flowmasters, but have a throatier idle sound  - they have a great muscle car sound but are more unique. They are equally as quiet as the Flowmasters at cruise.

The Dynomax's that I've heard are comparable to the SDT's. They're a bit throatier, but have a slightly higher pitch to them which I don't quite like as much.

As you know – all very subjective.

[Finn]

Nacho heres a quick video i made last night.

Will do another one soon. Was playing with the new phone (DROID, awesome btw) and uploaded it straight to youtube. Worked out well, you just cant see anything LOL!

Think you get a better idea of the sound, though not quite. I will be recording one on saturday with in nice hi def.

http://www.youtube.com/watch?v=_5ICjmMa4x4

Not gonna lie I jumped a bit. That's a lot of bark compared to the idle.

[Nacho-RT74]

Corellian Corvette... which magnaflows ?, their website is very set to modern cars

mmm hemi mufflers  , never though on that before!

LOL I did like the Flow's-Torq Thrust comparisison... is true LOL, and thats why I wen't far away from those wheels... I'm set on centerlines 915s vintage

( editing... well, Hemi mufllers on $120-150 rate are discarded )

[Nacho-RT74]

dunno, but on this comparision... I choose FMs http://www.youtube.com/watch?v=zgz3x1w71qs&feature=related

50s of course

[FLG]

Nacho heres a quick video i made last night.

Will do another one soon. Was playing with the new phone (DROID, awesome btw) and uploaded it straight to youtube. Worked out well, you just cant see anything LOL!

Think you get a better idea of the sound, though not quite. I will be recording one on saturday with in nice hi def.

http://www.youtube.com/watch?v=_5ICjmMa4x4

Not gonna lie I jumped a bit. That's a lot of bark compared to the idle.

Yeah,

They really wake up when you get some flow going through em.   

[Nacho-RT74]

does somebody knows about FLOWMONSTER ? I talked about an ebay dealer of this brand talking about my requirements and budget, and he replied me talking about these:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=140375054813&ru=http%3A%2F%2Fmotors.shop.ebay.com%3A80%2F__%3F_from%3DR40%26_trksid%3Dp3841.m39.l1313%26_nkw%3D140375054813%26_sacat%3D%26_fvi%3D1&_rdc=1

[Corellian Corvette]

Corellian Corvette... which magnaflows ?, their website is very set to modern cars

mmm hemi mufflers  , never though on that before!

LOL I did like the Flow's-Torq Thrust comparisison... is true LOL, and thats why I wen't far away from those wheels... I'm set on centerlines 915s vintage

( editing... well, Hemi mufllers on $120-150 rate are discarded )

Just take a measurement of what you need, go to this part of the site:
http://www.magnaflow.com/02product/universalmuffler.asp?shape=oval

They have very few custom mufflers - most are universal fit so just get the inlet/outlet/length you need.

[rp23g7]

I have 3 inch with Flowmasters that dump right before the axle.  I think i may switch to Dynamax or Magnaflow.  The drone right off idle is getting annoying, especially in the parking garage at work with all the resonance.  It will rattle yor brain loose.

[R2]

How do the flowmaster DELTA's compare to the SUV's .(eg the 50 series)........ sounds like the SUV's are a bit quieter ?

[Nacho-RT74]

yes, it looks SUVs are quieter

[Nacho-RT74]

stilll thinking on this deal...

I have searched about Dynomax... I really liked the miller video...

http://www.youtube.com/watch?v=AxN23wfw-Zs

MILLER... whats the PN of those ?

I would get lot of diff between PN 17513 ( 20" case  ) and 17219  ( 14" case ) ?

Then dunno  the diff between Ultraflow SS or Ultra flow welded ?

[Nacho-RT74]

or give a try to these:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=140375054813&ssPageName=STRK:MEWAX:IT

http://www.flowmonster.com/stainlessseries.aspx

[moparmoynihan]

There is two different style 40 series mufflers. There is the regular 40 series and the Super 40 series.  The Super 40 is black and the regular is silver. I have TTI 1 7/8 headers, TTI h-pipe, Super 40 series mufflers with full tail pipes from Flowmaster that were mandrel bent. This car sounds AWESOME!!!!! I believe the Super 40 series have been designed to reduce the interior drone, while keeping the signature sound which is more aggressive than the regular 40's.. I will never purchase another muffler for any of my future hot rods. 

[71runner]

has anyone here run the hooker max flow mufflers? i saw an article awhile ago on a test between a few different mufflers, the max flows flowed well, had a moderate db level at idle and a very high db level at w.o.t.  just wondering if anyone has actually heard them??

[Nacho-RT74]

what do you think between 3 chambers mufflers and fiber filled mufflers ?

[Nacho-RT74]

After TOO MANY QUESTIONS MYSELF... TOO MANY DOUBTS! I decided and went with the flowmonsters. Price worths the try, They are similar design and construction of the  Dynomax ultraflow ( but half of price ) so I think they should be similar sound, and seller did show me some videos from a silverado and a Nisssan Titan. Explained me the fiberglass was to save me from the drone and excesive slappy sound I was trying to keep off and chambered mufflers produces.

Beside that got also a good offer from seller if I make a Video of the mufflers on the car and post, that I couldn't reject!

I think worths the try. I also liked the clean construction they look to have, being SS, and continuous weld seam... will be the guinea pig.

after all, definitelly will be WAY BETTER than the stocks/replacement ones I actually have and better than any local option I could find down here.