I agree with him ...secondary o2 wire will need extending...FTW!!i'm pretty sure if you remove the down pipe after the y7 cat, the y8 header and cat will bolt directly. you'll also have to extend some o2 sensor wires to reach their new spots. more than likely just the secondary o2.
well i just got the car inspected for this year so i am good on that. also i already got headers, they are the megan racing ones, girlfriend bought them for me for christmas. when i went to install them yestarday i noticed that my stock exhaust manifold was cracked from the o2 bung around towards the back. the crack is about 3 inchs long. also my stock exhaust manifold has a stripped out bolt where the downpipe mounts up. so reinstalling that is pretty much out of the question.ebay is probably the only place you'll find a stainless catback for less than $400. try to find a 2 1/4 inch setup. and also, if you're on a budget, a lot of us have been using the ebay headers and they have been working well for us. if you want to run a test pipe, get one of these. www.o2simulator.com they work well also and you do have to keep your check engine light off for inspection in north carolina.