Cat delete pipes and O2 sensors

yea that is why settled on the Borla system. Stock turbo, stage 1, stock boost, AEM cold air. i dont need it any faster. Of corse you can always make it go faster but on the basis of will a full 3" turbo back make more power than the Borla system on a stock turbo i would that it doesnt dollar for dollar. changing out the o2 housing sucks and for what 5hp? oh boy!@

 

Changing the o2 is cake after rebuilding everything =]