Ever since i got my ko4 kit from awe, i have had backfire issues. The car bogs down and backfires, usually under full load or when i accelerate at random times. It feels as if the car is being chocked, but it runs great at part throttle. Is this the Cat? or is the Chip sending the wrong fuel air ratios? I need to fix this, because i know it will eventually kill the turbo.

 

I had the same problem.. but i ended up fixing it.. or it fixed it self really.. right about the same time I drove it into a teliphone pole and fliped it.. good luck.. do you get nasty flames out your tail pipe.. I use to..lol

 

Check with GIAC.

 

i want flames!