was thinking about putting some dynomax bullet mufflers on when I do my exhaust, any benefits to straight through vs chambered???
was thinking about putting some dynomax bullet mufflers on when I do my exhaust, any benefits to straight through vs chambered???
i have them on my car and i like them, louder than my flowmasters were, and it def. benefited my car being a turbo not as much back pressure
1998 TT GT....
1998 Honda Civic Stock DD
1994 Jeep Grand Cherokee, 4 inch rough country suspension lift and BFG 32 inch M/Ts
2000 Seadoo RX Millenium Edition 951
I think chambered sounds better. IMO but for boosted car straight thro the way to go. Unless u need back pressure like in my case I don't have cats. I think the cambers make up a LITTLE for not having cats so I don't lose to much torque.
Time and time again straight through designs make more power than chambered. I'll never run a chambered muffler again. I run dynomax welded ultraflows. The bullet's are LOUD.
-Paul
1995 GT 'vert
Best times on old 302 combo:
12.03 at 112.5mph NA
Best time with 9:1 compression NA dart block 331 setup:
11.50 at 121mph
Dyno'd: 415rwhp/410rwtq
2004 Z16 commemorative edition Z06
100% stock: 11.9 at 118mph
is it a big deal to run no cats with the straight through mufflers?
////Originally Posted by 94svtcobra
Last edited by 03 OW SVT; 10-24-2008 at 07:56 PM.
17 Ram 1500 Big Horn Hemi
16 Comp O GT Performance Pack
03 Oxford white Cobra (Gone but not forgotten)
I run no cats and straight through mufflers... always have. What would be the problem? If you are worried about back pressure don't be unless you are putting a 3" exhaust on the entire car with big primary header tubes with stock/gt40 heads.
-Paul
1995 GT 'vert
Best times on old 302 combo:
12.03 at 112.5mph NA
Best time with 9:1 compression NA dart block 331 setup:
11.50 at 121mph
Dyno'd: 415rwhp/410rwtq
2004 Z16 commemorative edition Z06
100% stock: 11.9 at 118mph
To be honest I doubt you'll see much of a difference either way, I'd go with sound you like better.
The straight throughs do flow better and will have more of a benefit with a turbo as turbos are sensitive to back pressure, but on typical non-turbo street/strip cars you won't see more than 5hp either way (5.0 Mustang did a muffler shoot-out on an NMRA real street car and something like 20 mufflers were all within like 6-7hp).
My brother just switched from Borla XR-1s to Flowmasters on his car for the sound. He has a supercharged 10.40 car and he feels he actually picked up some, mainly due to more torque.
I'm a straight-through fan myself (Borla Pro XS are my favorite street mufflers--awesome on my '04 Cobra) but it really is more of the sound you prefer.
-J
'91 LX Bimini Blue
427"/88mm on 16psi
'99 Contour SVT
Clean DD
So many options!
I love my big blocks with straight though. My old 2000 GT was sick with no cats, prochamber and magnapacks.
I have the new flowmaster 44s on my notch, very deep!
87 GT
93 Notch
60 Country Sedan
Fairlanes/Galaxies 59-68
67 Contiental 4 door
06 Powerstroke
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