cutting cats off.....
Thread Starter
On The Tree
Joined: Jan 2007
Posts: 178
Likes: 0
cutting cats off..... I was thinking of cutting my stock cats off and weld in pipeing inplace of the cats that way i dont mess up the cats by gutting them does anyone know what size pipeing it is i went to autoparts today and they sell 18" exhaust pipeing for 5bux ea. but didnt buy it because wasnt sure if it was 2.5" or 2.25" or 2" ?? how much louder would it be any power difference? for now all i have for exhaust is a borla cat-back.... Thanks
Thread Starter
On The Tree
Joined: Jan 2007
Posts: 178
Likes: 0
thanks man yea but those y's are expensive... im just going to cut off the cats and weld in the 2.25" tubing inplace of the cats for now because i will be getting lt headers and ory soon..... would an ses light or anything come on when i take off the cats?? also how about if when i unbolt everything and start the car up to see how it sounds open headers would it then have a ses and would have to reset pcm thanks....
TECH Apprentice
Joined: Dec 2004
Posts: 328
Likes: 0
From: Downers Grove, IL
You will get a light because your rear O2 sensors will know that they cat's are not working correctly (because they are not there). You should buy 2 O2 sims for your rear sensors to fix that problem.
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Verdad Gallardo Thread Starter
On The Tree
Joined: Jan 2007
Posts: 178
Likes: 0
yea the 25bux does sound better and i will just leave the light on wont bother me..... also does anyone know if two staright pipes would fit/lineup or do they need an elbow what degree??? i believe the driver side one can just be cut and put a straight one not sure??
Last edited by ballerchris510; Aug 26, 2007 at 04:53 PM.
