01-01-2013, 08:01 PM
FlaakCM Wrote:I am a member over at NASIOC, which I check pretty frequently. I am actually in the process of trying to find out more about downpipe options and how they effect this car. I have read that even with a high flow cat on the DP, it might still throw CELs. Any one else know if this is true?
I want to upgrade my exhaust to at least a CBE. I just dont know if i should go full TBE.
If you're doing a TBE, you'll need a tune. Your tuner will be able to compensate for any potential check engine lights. But yes, with a downpipe and no tune, you're going to have a bad time.
1987 Oldsmobile Cutlass 442