right,...mods. Vishnu reflached ecu, ive had for about a year now along w/ the rest of the mods. 3inch borla hush exhaust, 2 1/2 inch upipe, drop in k&n filter, ground system. The car idles fine, I get a cel every now and then i think is from the exhaust but never had it affect performance, however i will deffinatly be priceing o2 censors now. Any other thoughts?