about when do cat converters go bad? I have jsut about 100k miles on the bonnie stock cat converter. Ive been thinking about the Goerlich or whatever its called. I have an 02 SLE, is the pipe a 3"? And how much do the exhaust shops usually charge to replace the stock cat with the Goerlich?
Last edited by 02SpcGhst; 02-06-2010 at 12:18 PM.
Reason: added more words
the 3" would have fit perfectly. the stock down pipe has a smaller pipe inside it that was just under 3"O.D. and the new 2.5" cat i got was 2.5" I.D. so i had to custom make an adapter fot it all to go together. here is the pic