so i ordered my headers and my cutout for my new setup, and i just realized that the collecters are only 2.5" for all the aftermarket headers, why is that when the stock size is 3"? i already ordered 3" muffler and cutout
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Headers coming in and new exhaust setup
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Re: Headers coming in and new exhaust setup
you mean collector size on the y-pipe that comes with the headers?Team NoVa
2000 Firebird- Intake, Pacesetters, !cat, full 2.5 to flowcrapster, 1.9 rockers, LS6 springs and Intense modded retainers, WS6 speedlines, T/A bumpers and hatch, 5 spd swapped, SOON TO BE nitrous'd and cammed.
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Re: Headers coming in and new exhaust setup
are they pacesetter? cause if they are, then the collector is 3 inch.Team NoVa
2000 Firebird- Intake, Pacesetters, !cat, full 2.5 to flowcrapster, 1.9 rockers, LS6 springs and Intense modded retainers, WS6 speedlines, T/A bumpers and hatch, 5 spd swapped, SOON TO BE nitrous'd and cammed.
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Re: Headers coming in and new exhaust setup
The collectors (arms) of the y-pipe shouldn't be 3". They're typically something like 2.5" until they merge at the "y section" that connects to the catalytic converter. Where the collectors merge at the Y and after should be 3" piping.
Stock is the same way.'99 Camaro
'04 Saab 9-3 Aero
'90 Audi Coupe Quattro
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Re: Headers coming in and new exhaust setup
Originally posted by Fondle View Postim aware of that, but i wanted to do all 3" piping
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Re: Headers coming in and new exhaust setup
Originally posted by pace2006 View PostThe collectors (arms) of the y-pipe shouldn't be 3". They're typically something like 2.5" until they merge at the "y section" that connects to the catalytic converter. Where the collectors merge at the Y and after should be 3" piping.
Stock is the same way.
fondle- the collector at the y-pipe is 3 inch. if you run 3 inch pipe from there back, then you can put your cut out somewhere in the I-pipe.there is no problem here at all.Team NoVa
2000 Firebird- Intake, Pacesetters, !cat, full 2.5 to flowcrapster, 1.9 rockers, LS6 springs and Intense modded retainers, WS6 speedlines, T/A bumpers and hatch, 5 spd swapped, SOON TO BE nitrous'd and cammed.
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Re: Headers coming in and new exhaust setup
Alright, I shoulda known from this post sequence
Originally posted by Fondle View Postya, the collector on my new headers is 2.5"Originally posted by Fondle View Postthe y pipe its self isnt 3" just the collecter,
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