Quote Originally Posted by BillBoost37 View Post
You have to leave the rear o2 in the pipe, for the cat diagnostic....honestly though..I've always had cats and never had issues with restriction
Thanks man. And just double checking the air filter needs to have a 3" inlet to fit on the MAF correct?


I have never bought the spectre filters. Are they descent? Or just spend the extra $10-15 for a k&n?