I'm interested in getting OTTP stage 2 kit, I have CAI, Badmab headers, ZZP 3' catless downpipe, and custom exhaust. Am I ok with just getting the heat exchanger or do I need to upgrade other things for the kit as well to get the best power out of it?

thanks

 

What size pulley will you be using? Does your IC pump work? I'd recommend adding an option B setup. You will definitely need a custom tune to get the best power out of the setup.

 

i had the ottp base tune and it wasnt all that great, a custom tune made a huge difference. as well dual pass manifold will be worth your while

 

The dualpass is highly recommended with the option b and the heat exchanger