F250sd
New member
So ill cut to the chase, on a stock 6.4 would i need a tuner to run my blowby into the atmo with a ccv out to the frame. I'm planning on(need to) make it breath better cold air dowpipe back tune sorta stuff but can i do the ccv mod or will i just start throwing codes and whatnot? kinda a simple question but i could find anything with that specific info and most yalls trucks got the tune treatment already.