I've used the predator before and was happy with it. My question is does the SCT programmer disable the rear O2 sensor? This is a big deal for me since I wanna run a catless x-pipe and dont want the engine light to be on.I'd also like to hear what your opinions are on both,thanx.

 

yes it does. There is an option for this while setting up your tune. I have the SCT OBD II for the 05 and up. It's basically the same flashing unit.

 

u can always pull the bulb out.

 

that will actually fuck up your car. You should turn them off if you're running an catless pipe.