Originally Posted by Paps
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?
there are many many issues with obx headers search the forums for reviews and stuff. and no my mpg is still crappy im awating my bms o2 sim.