Flowmaster Super 44 Mufflers

[justin1987]

Has anybody bought any of the new Flowmaster Super 44 mufflers or have heard what they sound like?

[mikesbbody]

i was wondering the same thing myself! i dont have them, but alot of guys here dont like flowmasters. On their website they say they produce more torque and h.p and are the loudest muffler they make but on the graph they seem no different than the series 40's.

[70charger_boy]

I run the flowmaster 44's on my truck.  It sounds great.

[69chargerboy]

i was wondering the same thing myself! i dont have them, but alot of guys here dont like flowmasters. On their website they say they produce more torque and h.p and are the loudest muffler they make but on the graph they seem no different than the series 40's.

I absolutly LOVE Flowmaster mufflers, I refuse to buy any other. I LOVE the way they sound. I had a dual exhaust Flowmaster set up on my 73 Charger. That little 318 2bbl sounds like a Big Block. I will never get anything else..... I can't want to put Flowmasters on my 69 with a built 440. CAN'T WAIT!!!!!!

[firefighter3931]

There are those who go for the "sound" and there are those of us who go for performance. 

No Flowbastard will EVER be on any vehicle i own....NEVER ! 



Ron

[69chargerboy]

There are those who go for the "sound" and there are those of us who go for performance. 

No Flowbastard will EVER be on any vehicle i own....NEVER ! 



Ron

Really? Are Flowmasters that bad? My 440 has been dynoed 500+ HP would Flowmaster constrict most of that power? I'm not worried about my '73 Chargers performance, it's only 150hp stock. How about Magnaflow?

[firefighter3931]

There are those who go for the "sound" and there are those of us who go for performance. 

No Flowbastard will EVER be on any vehicle i own....NEVER ! 



Ron

Really? Are Flowmasters that bad? My 440 has been dynoed 500+ HP would Flowmaster constrict most of that power?

Let me put it this way.....most hot street/strip cars i know of running flowmasters go waaaay faster at the track when the exhaust is dropped. This tells me they are very restrictive.....not to mention the obnoxious tinny sound. 

Dynomax ultraflows on the other hand are a straight-thru design and have a deep rumble at idle and sound wicked at WOT. They won't hurt performance either ; 630hp 493ci b-body with x-pipe and 3in exhaust runs 10.50's and actually ET's faster with the exhaust system on as opposed to removed. 


Many members here have made the switch from Flows to Ultraflows and noticed a huge difference.  I've recommended them many times and have yet to hear a negative comment. 


Magnaflow is also a very good muffler that uses a stright thru design but has more packing in the case for sound absorption. They're a little quieter than the ultraflows but perform equally well.




Ron

[firefighter3931]

Thanks a lot Ron for all the great info. I will definitely decide on either Dynomax or Magnaflow for my 69. Thanks Again, John

No problem John, trust me when i say you'll luv the Ultraflows. 

A 500 horse 440 needs to be able to exhale.....let the big dog breathe ! 



Ron

[69chargerboy]

Thanks a lot Ron for all the great info. I will definitely decide on either Dynomax or Magnaflow for my 69. Thanks Again, John

No problem John, trust me when i say you'll luv the Ultraflows. 

A 500 horse 440 needs to be able to exhale.....let the big dog breathe ! 



Ron

Thanks again Ron, but this poses another question for my application. What would you say to either 2.5 inch tubing or 3 inch tubing? Straight Pipe, H-Pipe or x-Pipe. Noticeable diffrence?

[firefighter3931]

Thanks again Ron, but this poses another question for my application. What would you say to either 2.5 inch tubing or 3 inch tubing? Straight Pipe, H-Pipe or x-Pipe. Noticeable diffrence?

John, rule of thumb is 3in for 500hp and up. 2.5in works well in the 400-500hp range. For sure use a crossover of some type....my preference is for the X-pipe which is designed to reduce reversion and help with scavenging. The X creates a venturi that pulls spent gases out of the cylinder rather than having the engine push them out. The resulting intake charge is cleaner and the engine makes more power. X-pipes work very well.....the technology was originally developed for Nascar and it has migrated to the musclecar market with excellent results. 

TTI sells a very nice mandrel bent x-pipe system for both headers and manifolds. I would highly recommend mandrel bent pipes over compression bent. 


Ron

[69chargerboy]

Thanks again Ron, but this poses another question for my application. What would you say to either 2.5 inch tubing or 3 inch tubing? Straight Pipe, H-Pipe or x-Pipe. Noticeable diffrence?

John, rule of thumb is 3in for 500hp and up. 2.5in works well in the 400-500hp range. For sure use a crossover of some type....my preference is for the X-pipe which is designed to reduce reversion and help with scavenging. The X creates a venturi that pulls spent gases out of the cylinder rather than having the engine push them out. The resulting intake charge is cleaner and the engine makes more power. X-pipes work very well.....the technology was originally developed for Nascar and it has migrated to the musclecar market with excellent results. 

TTI sells a very nice mandrel bent x-pipe system for both headers and manifolds. I would highly recommend mandrel bent pipes over compression bent. 


Ron

Again, Ron you have been most helpful. Thank You, John

[Purple440]

Ron what's your opinion on H pipes?

[firefighter3931]

Ron what's your opinion on H pipes?

Doug, a crossover is allways beneficial and an H system is the next best thing to an X system. Both will show some improvement but the X will deliver a bigger "seat of the pants" improvement over the H. I've seen a few chassis dyno tests where the X was worth 15-20 rwhp & rwtq over the H. 



Ron

[mikesbbody]

I have heard the x pipe is abit quieter (than the "H" pipe) as well? ron will know for sure

[firefighter3931]

Mike, the X is quieter than the H and it also changes the exhaust tone slightly. I like the X-pipe sound 



Ron

[mikesbbody]

ron, you have me sold on the x pipe and changing mufflers (i have flowmasters at the moment) it wont happen anytime soon though due to $ (lack of) 

[histoy]

Ron, what's the downside of running a 3" exhaust system on an engine that's 400 - 500hp?  Brian

[69chargerR/T]

There are those who go for the "sound" and there are those of us who go for performance. 

No Flowbastard will EVER be on any vehicle i own....NEVER ! 



Ron

Really? Are Flowmasters that bad? My 440 has been dynoed 500+ HP would Flowmaster constrict most of that power?

Let me put it this way.....most hot street/strip cars i know of running flowmasters go waaaay faster at the track when the exhaust is dropped. This tells me they are very restrictive.....not to mention the obnoxious tinny sound. 

Dynomax ultraflows on the other hand are a straight-thru design and have a deep rumble at idle and sound wicked at WOT. They won't hurt performance either ; 630hp 493ci b-body with x-pipe and 3in exhaust runs 10.50's and actually ET's faster with the exhaust system on as opposed to removed. 


Many members here have made the switch from Flows to Ultraflows and noticed a huge difference.  I've recommended them many times and have yet to hear a negative comment. 


Magnaflow is also a very good muffler that uses a stright thru design but has more packing in the case for sound absorption. They're a little quieter than the ultraflows but perform equally well.




Ron

I have a 69 charger with 3" flowmaster exhaust with the super 40 mufflers  its to loud !! Are the dynomax ulta flo mufflers quieter and will they fit in place of the super 40s. I want performance but I want to be able to cruise down the street and on the highway and be able to hear the stereo !!!!! Or should I go with magnaflows is ther a big difference in sound between the two, also will the magnaflows fit in place of the super 40s. Thanks Alan

[firefighter3931]

Ron, what's the downside of running a 3" exhaust system on an engine that's 400 - 500hp?  Brian

Brian, if the headpipes are too big it can hurt your bottom end power (torque). It's important to look at the entire exhaust system when selecting parts. Beginning at the exhaust port and ending at the tailpipe....it's a complete package. The idea is to maintain high velocity yet have an efficient system that moves the spent gases out the back as opposed to having them linger in the headpipes. A properly sized system will reduce reversion and keep the incoming intake mixture cleaner. You want to eliminate exhaust gas dilution as much as possible while not restricting exhaust flow. Too big will hurt performance as much as too small....just not in the same way.



Ron

[firefighter3931]

I have a 69 charger with 3" flowmaster exhaust with the super 40 mufflers  its to loud !! Are the dynomax ulta flo mufflers quieter and will they fit in place of the super 40s. I want performance but I want to be able to cruise down the street and on the highway and be able to hear the stereo !!!!! Or should I go with magnaflows is ther a big difference in sound between the two, also will the magnaflows fit in place of the super 40s. Thanks Alan

Alan, the Ultraflows are much  quieter than the Flows....especially at low engine speed and cruising. They wake up bigtime when you hammer the throttle. I find the Magnaflows a little too quiet for my liking but that's just personal preferance....some guys luv the magnaflows. 

With the ultraflows you'll have no problem hearing the stereo. 


There are several different sized Ultraflow mufflers with different case lengths and inlet/outlet offsets. Measure your mufflers and check on the Summit website for a matching Ultraflow. 



Ron


Ps. Check out the link....this is a Dynomax exhaust....deep rumble at idle and wicked wide open 


http://www.youtube.com/watch?v=eBbd0KzyVn4

[69chargerR/T]

I have a 69 charger with 3" flowmaster exhaust with the super 40 mufflers  its to loud !! Are the dynomax ulta flo mufflers quieter and will they fit in place of the super 40s. I want performance but I want to be able to cruise down the street and on the highway and be able to hear the stereo !!!!! Or should I go with magnaflows is ther a big difference in sound between the two, also will the magnaflows fit in place of the super 40s. Thanks Alan

Alan, the Ultraflows are much  quieter than the Flows....especially at low engine speed and cruising. They wake up bigtime when you hammer the throttle. I find the Magnaflows a little too quiet for my liking but that's just personal preferance....some guys luv the magnaflows. 

With the ultraflows you'll have no problem hearing the stereo. 


There are several different sized Ultraflow mufflers with different case lengths and inlet/outlet offsets. Measure your mufflers and check on the Summit website for a matching Ultraflow. 



Ron


Ps. Check out the link....this is a Dynomax exhaust....deep rumble at idle and wicked wide open 


http://www.youtube.com/watch?v=eBbd0KzyVn4

Ron, thanks for the info sounds like I am going to go with ultraflows. I wish I got more info on exhaust systems before I bought mine, I got the flowmaster musclecar system it is 3", but after reading your post should have gone with 2.5" my car has maybe 425hp.I was thinking the bigger the better !! I don't think it will hurt my performance to much I don't race the  car just a street cruiser. I did like how the flowmaster system fit,it was easy to install just way to loud, when cruising at any rpm the sound just goes through your head !!! I checked summit the dynomax ultru flo #WLK-17221 have a 19" overall length same as my super 40 flows, Can't wait to try them !!!!    Thanks for your help,I also didn't know that flows don't flow Every one I talked to said they were good !! Again thanks, Alan   
 

[firefighter3931]

Alan, i don't know if the flowmaster exhaust system has a crossover pipe....if it doesn't you could allways add one. The crossovers help with torque production with the X-pipe being the preferred crossover. The standard H-pipe crossover is cheap and easy enough to install....at least use one of those if you don't allready have one.

The 3in is fine....it will cost a bit of torque down low but i wouldn't be swapping out a brand new exhaust system ! 



Ron

[69chargerR/T]

Alan, i don't know if the flowmaster exhaust system has a crossover pipe....if it doesn't you could allways add one. The crossovers help with torque production with the X-pipe being the preferred crossover. The standard H-pipe crossover is cheap and easy enough to install....at least use one of those if you don't allready have one.

The 3in is fine....it will cost a bit of torque down low but i wouldn't be swapping out a brand new exhaust system ! 



Ron

     Ron, it does have an  H-pipe but I do want to change to an X-pipe, I do get a weird sound at certain rpm ranges, that I hear, I have heard that an H-pipe could be causing this sound they say change to X-pipe sound will go away, don't know if this is true or not. I do know the X-pipe is better !! going to put the ultra flows on first  then save up for an X-pipe I think tti makes a good one but its not cheap!!! thanks once again, Alan

     
      PS: Who does make a good X-pipe for a b-body.     
 
   

[firefighter3931]

     Ron, it does have an  H-pipe but I do want to change to an X-pipe, I do get a weird sound at certain rpm ranges, that I hear, I have heard that an H-pipe could be causing this sound they say change to X-pipe sound will go away, don't know if this is true or not. I do know the X-pipe is better !! going to put the ultra flows on first  then save up for an X-pipe I think tti makes a good one but its not cheap!!! thanks once again, Alan

     
      PS: Who does make a good X-pipe for a b-body.     
 
   

Alan,

The wierd sound could very well be a product of the Flowmaster mufflers.....your plan is good ; change the mufflers first....one change at a time. 

TTI sells the whole headpipe system with an x-pipe allready built in. It is designed for their headers so if you're running another brand header then there will be some modifications required. Several companies make universal x-pipes that you can simply weld in to an existing system. The best one on the market is made by DrGas but they are pricy....i bought one for mine and they are the only company that makes a custom 3.5/3.0 x-pipe.

For yours, any of the generic 3in x 3in x-pipes would be sufficient should you decide to go that direction. Summit Racing sells them for pretty reasonable $ as compared to the DrGas stuff.


http://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM%2D642130&N=700+4294923429+4294921571+115&autoview=sku



Ron