catback w/ boost

[01cobrakid]

I was wondering if a dynomax 3'' ultraflow catback would be better than a 2 1/2 catback*borla/steeda* on a blown 01 cobra?
E-trim around 7psi. Which makes better power/torque?
can anyone explain this? I know some people say not to get a 3'' cb unless you have a blower?

My point is i ordered the borla/steeda and im wondering if i shouldve went with the 3'' dynomax?

Thanks i>a

Mike:coolman:

 

[GR8WHITE]

Too much exhaust flow (not enough backpressure) really kills your torque. Unless you're running alot of boost, I think you'll be just fine with the 2.5

 

[Poisonous Mods]

Originally posted by GR8WHITE
Too much exhaust flow (not enough backpressure) really kills your torque. Unless you're running alot of boost, I think you'll be just fine with the 2.5

GR8WHITE is right on that note.

Look at the #4 Run....TQ at 3000rpm is at 370rwtq.

 

[Poisonous Mods]

So I left the Tuner with 370TQ at 3000rpm & max of 382.3TQ

Look at #5 run now lost TQ.
At 3000rpm after the big free flowing exhaust it TQ starts off at 355TQ or so & max of 382.1TQ

 

[Poisonous Mods]

Not worth it bro..save or spend the cash for some things else.
I had the Bassani X-pipe with out cats & big 3" exhaust.

Even with the 03Cobra's u need some restrictions unless ur going to make big time Boost...only then its worth the $$.