I want to buy hooker headers but witha few questions. DO I need 02 fittings if I have a gutted cat or no cat at all? and also is that mufflex y-pipe worth the 250? how much do you think a shop were charge to make one?
thanks a lot

 

The pre-cat O2 sensors are required so when buying your Hooker headers be sure to buy them with the O2 bungs built in. For the after-CAT O2's you can use O2 SIMS.