tuffguy

Do you guys know what size it is? Also, is it best to keep it the same size throughout (downpipe, testpipe, catback)?

travman

iTrader: (26)

If needed go smaller at the front and larger to the rear..........

(for example) you could go 2.75 dp to 3" cat/test pipe to a 3" catback or 3.5" if you really felt the need to?

or just go straight 3"?

ROGERV

iTrader: (51)

RRE stealth exhaust is full 3"

thisxguy

iTrader: (17)

RREs stealth catback is full 3 inches. the dp they use is the espiler which is 2.75...but you can use whatever dp you want.

if you want top end and are willing to sacrifice low end, go with the full 3. using the 2.75 will help you keep some low end, while sacrificing top end. the choice is yours

tuffguy

Thanks guys, you answered all of my questions, even the ones that I didn't ask.

Looks like the Invidia O2 housing is the way to go too.

travman

iTrader: (26)

well thats argueable.....ebay o2 makes some nice gains for very cheap and nobody seems to have any cracking issues with them? Its all in what you want to pay for.......

tuffguy

Supposedly it's 2.9" whereas the others are 2.3".

2.9" mates with 3" much better than 2.3" with 2.75"/3". And I'd have to go 3" the rest of the way to prevent bottlenecking.

At least that's my reasoning.