exhaust

[68chargerboy]

which is a better muffler.  i want something real lound with good performance.  i have narrowed it down to 2 the dynomax ultra flo welded or the flowmaster 40 series.

thanks in advance

                        Zach

[Ghoste]

Dynomax.

[mikepmcs]

dynomax!!!  slo bast#@$s don't have the flow compared to the dyno series.  Check out the site and see the CFM difference.

http://www.dynomax.com/

v/r
Mike

[RTPTRON]

Don't know which is best but I run the Flowmaster Super 40s and they perform well and are loud.  What else is there.

[Steve P.]

Dynomax.

Agreed...........   I like the sound better too...

[firefighter3931]

Don't know which is best but I run the Flowmaster Super 40s and they perform well and are loud.  What else is there.

Any flo-thru muffler will perform better than a flowmaster.....the flows are very restrictive and will choke your motor down. 

Dynomax ultra-flows are what the original poster needs ! 




Ron

[68chargerboy]

are the dyno max mufflers real loud, because that too is what im lookin for

[firefighter3931]

are the dyno max mufflers real loud, because that too is what im lookin for

The Dynomax ultra flows are louder than the super turbos.....go with the ultra flows and you will be happy. They sound awesome wide open ! 



Ron

[Steve P.]

Yes they do................

[is_it_EVER_done?]

dynomax!!!  slo bast#@$s don't have the flow compared to the dyno series.  Check out the site and see the CFM difference.

http://www.dynomax.com/

The problem lies in that the Dynomax tests have been severely criticized and disregarded in as much as their mufflers are a simple glasspack, straightthrough design, which can be installed either way, and so they tested against the other manufacturers flowing backwards against their designed flow direction.

Also since the Dynomax is a glasspack, they will get louder and more inefficient as the miles get put on them. With no way to replace the glass filler, they are not a long term muffler.

Fortunately, I personally don't care for their sound, and their claims of power increases have been disproved, because any company that flat out skews/lies about their "tested" benefits should be avoided at all costs. With that said, I do have a pair that I ran for a couple hundred miles but I changed over to Flowmaster delta 40's as I much prefer their sound.
________________________________

Any flo-thru muffler will perform better than a flowmaster.....the flows are very restrictive and will choke your motor down.

Nothing could be further from the truth! Historically, reverse flow mufflers will outperform glasspacks every time. That's why the "Turbo" muffler has always been the standard for performance (which is why they were developed). The "chambered" mufflers are usually not quit as good power/quiet wise as the reverse flows, but the difference is so minimal that to take it into consideration would be silly.

To say that Flowmasters will choke the motor has been proven to be inaccurate. I will paste a dyno comparison that I saved from a couple years ago in which an LS-1 was dynoed with most/all the different mufflers which were available at the time. It's not a Mopar, but it interjects reality into the discussion.

Please note that "open exhaust" came in at the bottom as far as power is concerned.
_________________________

The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).
____________________________

The power differential is nearly non-existent, and would be similar to driving your car at noon vs. night, or with a few percent humidity difference. in other words to try to "tune" a cars power output with mufflers is a waste of time.

68 Chargerboy: The point of all this is, Choose a muffler that you like the sound characteristics of. It's one of the few things that can be decided on personal preference, without any cost as far as power goes.

[Steve P.]

They don't sound like a typical glasspack. I hate the sound of the old bullet style G-packs. Too raspy. I like the sound of the Dynamax and the Magnaflows. The magnaflows being a bit more easy on the long term drive..

[Ghoste]

If Dynomax are glasspacks they must have a lot of packing in there.  I've had mine on for three or four years now and they aren't any louder than they were when new. 

[firefighter3931]

Any flo-thru muffler will perform better than a flowmaster.....the flows are very restrictive and will choke your motor down.

Nothing could be further from the truth! Historically, reverse flow mufflers will outperform glasspacks every time. That's why the "Turbo" muffler has always been the standard for performance (which is why they were developed). The "chambered" mufflers are usually not quit as good power/quiet wise as the reverse flows, but the difference is so minimal that to take it into consideration would be silly.

To say that Flowmasters will choke the motor has been proven to be inaccurate. I will paste a dyno comparison that I saved from a couple years ago in which an LS-1 was dynoed with most/all the different mufflers which were available at the time. It's not a Mopar, but it interjects reality into the discussion.

Please note that "open exhaust" came in at the bottom as far as power is concerned.
_________________________

The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).
____________________________

The power differential is nearly non-existent, and would be similar to driving your car at noon vs. night, or with a few percent humidity difference. in other words to try to "tune" a cars power output with mufflers is a waste of time.

68 Chargerboy: The point of all this is, Choose a muffler that you like the sound characteristics of. It's one of the few things that can be decided on personal preference, without any cost as far as power goes.

Fwiw, ultraflows are far from simple glasspacks.....the typical glasspack design may be straight thru but they neck down significantly in the main body. A 2.5in inlet/outlet glasspack is not 2.5in internally. 

Ultraflow mufflers employ a roving fiberglass sound deadener inside the cases which can get louder over time....but not significantly louder. 

I've seen so many cars go faster after the flowmasters were removed it would make your head spin. Not just marketing BS.....the real deal. You'll never in a million years convince me that flowmaster makes a performance muffler....they have a tinny annoying sound that some like ( i hate them) but they are restrictive.

A member here had 3in flowbastards on his stroker and it was running 11.70's and should have been faster. It was suggested that he try open headers and voila....the car picked up 7 tenths and then ran 11.00's. Not restrictive huh 

Another aquaintance runs ultraflows on a mid 10 sec b-body with full exhaust and an x-pipe. The car ET's the same with open headers and the x-pipe/ultraflow/tailpipes installed.....pretty inpressive at that power level. That engine made 630hp on an engine dyno.


The F.A.S.T. mopar racers (stroker hemi builds) are exhaust limited to manifolds and headpipes/ tailpipes max 2.5in.....they all run ultraflow mufflers and those engines make in the 650hp range. 


There are numerous other examples and it would take a month of sundays to type them all out. Just suffice it to say....you'll never, ever see a flowbastard on anything i build....period ! 


DC member "Recharged" (Bob) just installed some ultraflows on his ride :

http://www.dodgecharger.com/forum/index.php/topic,27871.msg314018.html#msg314018




Ron


Ps ; As for the aformentioned dyno results (above) i'd like to see the engine combo. That particular engine isn't making big power. Throw all those mufflers on a 500+hp big block and see what happens. I'd also like to see the jetting changes required when switching from a flowmaster to an ultraflow....my guess is that the ultraflow would require more jetting to optimize the tune up.....a lot more !