mint_blue_p5
Member
i understand that the p5 has pre-cat and a cat converter...is there anyway i can install a universal hi-flow cat converter and still be smog legal?
if i do this modification would i need to change the pre-cat, cat or both?...and by doing this, will it in anyway affect the o2 sensors?
thanks!
if i do this modification would i need to change the pre-cat, cat or both?...and by doing this, will it in anyway affect the o2 sensors?
thanks!