SUPER_CHEVY

hi guyz..
just wondering about "RESIZE" my y-pipe..i mean i got Hooker 3" LT's ,a custom 3" Y-pipe and 3" Hooker cat-back..
My Z is lowered with Eibach PRO-kit and im tired of hit the ground..
Only thing I worry about is ground clearence
i only wanna change the Y-pipe to 2.5"..can it be done??? and how ??any loose in HP??or back pressure loose??!!


NOTE: i already have a 3" I-pipe that had an E-cut out..and i dont wanna change it

SUPER_CHEVY

anybody Home???

TheBlurLS1

iTrader: (8)

You will need to build a custom y-pipe. I would do a 2.5" to 3" merge (flowmaster merges are AWESOME if they make one for that size). You should loose no HP in doing so, think of all the 2.5" duals that people run on here?

SUPER_CHEVY

so.. you mean there is no problem in doing it??

TheBlurLS1

iTrader: (8)

Not as long as Jordan doesn't build it.

Tainted

iTrader: (9)

if youre doing true duals a 2.5 step down wont hurt but if youre jsut gonig for a cat-back youre gonna loose a few ponies

orangeapeel

iTrader: (18)

Shiiiiiiiit....... Mine is all 2.5 from the collector to the tip. You probably end up getting a little better scavenging out of that setup on the other hand. Could be a decent benefit.

SUPER_CHEVY

now i belive what some People say about the 3" exh. and its for a forced induction cars..

seriousl guyz i fell that i have no back pressure since i got the 3"
the car is silent until 2500 RPM then it sounds like a LT`s and aftermarket cat-back..even when it was with stock mainfolds and flowmaster muffler it was louder then now (i mean under 2500 RPM)

even some times when i but my hands in front of the tips..i feel just a little pressure from the muffler..
is it normal from a 3"??

SUPER_CHEVY

Guyzzzzzz...
is it normal or not??

SUPER_CHEVY

Guyz with 3" exh. plzzzzzzzzz answer me??

TheBlurLS1

iTrader: (8)

It's probably in your head, you'd be suprised and what you can forget about. Hand in front of the tips isn't a very good guage for anything. Backpressure is measured at the collectors (when talking about exhaust setups).

SUPER_CHEVY

ok...
would a 2.5" Y pipe really help me about ground clearence??? (with my 3" headers and cat-back)
thanks in advance