stlunatics2oo3 Posted May 7, 2003 Report Share Posted May 7, 2003 okay i took a dual exhaust setup off a cutlass supreme and i am not sure what exact size the pipe is ? so if you kno let me kno i kno the car had a 24 valve symbol on it if that helps please i need to kno by friday thanks jeremy Quote Link to comment Share on other sites More sharing options...
brian89gp Posted May 7, 2003 Report Share Posted May 7, 2003 should be 2.5" back to the Y Quote Link to comment Share on other sites More sharing options...
stlunatics2oo3 Posted May 7, 2003 Author Report Share Posted May 7, 2003 i need to kno after the y thanks Quote Link to comment Share on other sites More sharing options...
Brian P Posted May 7, 2003 Report Share Posted May 7, 2003 2.25 from catalyst to Y, then 2" to muffs Quote Link to comment Share on other sites More sharing options...
brian89gp Posted May 7, 2003 Report Share Posted May 7, 2003 I could have swore the DOHC got a 2.5" exhaust to the Y. I know my downpipe to the cat is 2.5". Guess i got to crawl under the car tomorrow and measure. Quote Link to comment Share on other sites More sharing options...
Slade901 Posted May 7, 2003 Report Share Posted May 7, 2003 Get a Dial Caliper (< $15) to measure the pipe diameter and you will know if the size is 2.5, 2.25, 2. Quote Link to comment Share on other sites More sharing options...
RedZMonte Posted May 7, 2003 Report Share Posted May 7, 2003 2.25 from catalyst to Y, then 2" to muffs I agree Quote Link to comment Share on other sites More sharing options...
RedZMonte Posted May 7, 2003 Report Share Posted May 7, 2003 I could have swore the DOHC got a 2.5" exhaust to the Y. I know my downpipe to the cat is 2.5". Guess i got to crawl under the car tomorrow and measure. Downpipe is 2.5" Midpipe is 2.25" pressbent Y is eather 2" or 1.75" pressbent I added 2.5" on my monte.. Destroyed the low end TQ. RedZ Quote Link to comment Share on other sites More sharing options...
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