Originally Posted by DJ Apex
Delete cats, be careful remvoing o2's make sure u dont lay them on the ground or anything keep them clean put them in a zip lock bag. buy a bms o2 sim in advance befor this mod and buy 6 new gaskits for header u will mess one or two when removing and mocking up header to motor. as far as that enjoy and take your time!
Thanks! I think I might do that, I saw these OBX headers on ebay that caught my attention, instead of just using the factory headers:
So headers + 02 Sims should be enough to have my car running normally (without Cats), right? How about gas mileage, did you solve your problem?