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Discussion Starter · #1 ·
A few of the setups i have tried out, however i don't have half the vids i use to lol. I've been through a lot of exhausts over the years

2004 v6 3.9L
Stock Manifolds, Stock Cats, Mac Prochamber, Flowmaster 40's and No mufflers, 2.5" tubing
exhaust change up - YouTube

2004 v6 3.9L
Stock Manifolds, Stock Cats, Mac Prochamber, No Mufflers, Sidepipes, 2.5" tubing
Mustang v6 prochamber setup - YouTube

and a friends sixxer
2001 v6 4.2L
LT Headers, No Cats, Divorced Midpipe, Flowmaster 40's, 2.5" tubing, Comp Cam
2000 4.3 v6 mustang - YouTube
 

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Great article for those of us are too old and a few brain cells short from all those years of partying.
 

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Discussion Starter · #5 ·
Come on all those views and only one guy with a clip of their exhaust :p

I do ask that non clip posts stay few to none to keep it a clean thread..i
 

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Nice write! Sure this will help.
 

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Some Muffler Options:
Borla XR2 Multicore:


SLP Loudmouth:

Cherry Bomb Extreme:

Cherry Bomb PRO:

Cherry Bomb Turbo:

CGS Muffler:

DynoMax UltraFlow:

Corsa RSC:

Spintech Muffler:

BBK Vari-Tune:

Flowmaster 10 Series Muffler:
 

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Do u have all 4 cats
NO. Longtube headers, followed by mini high-flow cats (Magnaflow).
I piped them in right before the mid-pipe so that the scavenging effect & heat collected, would pull through more efficiently. My hopes anyway. Passed state emissions testing no problem.
 

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Do you guys wanna add the write up about how backpressure is a myth?
 

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Discussion Starter · #15 ·
Do you guys wanna add the write up about how backpressure is a myth?
i can but there's so many studies online about it being a myth i'd hope people see it before actually deciding on an exhaust.
 

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Do you guys wanna add the write up about how backpressure is a myth?
It's no myth.
Quote from Exhaust Science::
"If the pipes are too large a fair chunk of torque can be lost without actually gaining much in the way of top-end power."
Quoted from following 10 year study: Auto Exhaust Science
*-It's been my experience that with V6's, you want to gain as much low-end torque as possible when utilizing such low horsepower, prior to adding a blower. (ie:) -Higher ratio gears, propper exhaust, lower intake spacers to extend runners, dyno tunes, ect....
 

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On low horsepower cars such as ours, it is. Taking out cats gains power, it doesn't lose any. Obviously putting too large of piping on does cause a significant loss of torque. But that's putting 3" piping on our v6s. I haven't seen anything proven that putting on a straight through exhaust system loses torque
 

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Discussion Starter · #18 ·
It's no myth.
Quote from Exhaust Science::
"If the pipes are too large a fair chunk of torque can be lost without actually gaining much in the way of top-end power."
Quoted from following 10 year study: Auto Exhaust Science
*-It's been my experience that with V6's, you want to gain as much low-end torque as possible when utilizing such low horsepower, prior to adding a blower. (ie:) -Higher ratio gears, propper exhaust, lower intake spacers to extend runners, dyno tunes, ect....
thats a good read...proves easily that backpressure doesn't exist but is really exhaust velocity that matters. a bit more in depth then the studies i've already read but still nice.
 

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1998 single port long tubes cam with thrush glass packs

I think im going to try a different setup, first will see how it sounds after the split port swap if I want to change it or not
will post another after the swap going to be tuned by sct handheld tune then taken to the dyno to get some numbers
Mac long tubes
o/r h pipe
2 28 inch thrush glasspack

3.8 cammed glasspack - YouTube
 
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