what is stock exhaust diameter?
#1
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what is stock exhaust diameter?
I am sorry I can't post in the engine forum, but I was wondering if anyone knows the exact size of the stock exhaust diameter?
I always read up on 2.75-3" exhausts and I wanted to know if the stock one is 2.5" I may bend a new 2.5" pipe, keep the cat/remove it and put in a high flow, and keep the stock muffler.
Just a thought. I've been tuning DSM's for 6/7 years now and have hated the loud sound a 3" exhaust brings. I noticed only trap speeds decrease from chopping my 3" full exhaust down to a 2.5" cat-back. I was thinking for a DD car that I can live with the 2.5" exhaust.
Thanks!
I always read up on 2.75-3" exhausts and I wanted to know if the stock one is 2.5" I may bend a new 2.5" pipe, keep the cat/remove it and put in a high flow, and keep the stock muffler.
Just a thought. I've been tuning DSM's for 6/7 years now and have hated the loud sound a 3" exhaust brings. I noticed only trap speeds decrease from chopping my 3" full exhaust down to a 2.5" cat-back. I was thinking for a DD car that I can live with the 2.5" exhaust.
Thanks!
#3
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for a while before i got my cutout i ran a 3" testpipe and downpipe stock catback.
Its not any louder than the stock exhaust and i picked up a very good amount of power...
With the cutout i picked up just a little more but my spool is crazy now =-)
stick with the stock catback and upgrade the rest... theres really not much power to be gained with a catback. The big numbers come from a testpipe and downpipe.
Cheers!
Its not any louder than the stock exhaust and i picked up a very good amount of power...
With the cutout i picked up just a little more but my spool is crazy now =-)
stick with the stock catback and upgrade the rest... theres really not much power to be gained with a catback. The big numbers come from a testpipe and downpipe.
Cheers!
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Have you ever looked at the stock muffler? That thing takes a Nasty 90' bend where the pipe comes into the muffler. Very Restrictive ! And also the cat back has 2 long resonators.
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