So I tried to get the car smogged with no cats... and obviously it failed... I didnt know it had no cats.. The guy ony said he had put the Helix downpipe.. But he also had a catless uppipe as well.. From what I understand the Downpipe has 2 cats right? So if I just change back to the stocker we should pass smog... this is all in theory of course as Ive got no knowledge of these cars at all... Any imput on this issue would be greatly appreciated!.. Thanks guys!!