Y-pipe issue
Thread Starter
Launching!
Joined: Jul 2006
Posts: 216
Likes: 0
From: Philly, PA
Y-pipe issue 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
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
Last edited by SUPER_CHEVY; Sep 16, 2006 at 08:56 PM.
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? 
Originally Posted by TheBlurLS1
Not as long as Jordan doesn't build it. 
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Thread Starter
Launching!
Joined: Jul 2006
Posts: 216
Likes: 0
From: Philly, PA
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"??
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"??
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Thread Starter
Launching!
Joined: Jul 2006
Posts: 216
Likes: 0
From: Philly, PA
Originally Posted by 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"??
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"??
Guyz with 3" exh. plzzzzzzzzz answer me??
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).