MustangJake88
Registered User
I am looking to free up my exhaust before I throw my 15% OD pulley on and I have heard that eliminating the resonator is a bad thing, and I have heard it's not bad if you leave on the cats. How restrictive are these cats if I am planning on throwing more boost at my car? My plan was just to delete the resonator and replace it with a dual in/single out Magnaflow. Will this hurt my boost?