Hey guys, i have a quick question i want to ask, im currently tuned for the mods listed in my sig, my question is will running an exhaust manifold have any affect on my tune? how about running an aftermarket 18psi wastegate, will it affect my car, reason im asking is because i have those two parts i can either sell or keep, im not sure what to do with them. I talked to my tuner and hes charging me to re tune my car a full tune price because he said since im installing a different wastegate hes got to do a new tune on the car, is that true? I mean im a returning customer, i would think all he has to do is tweak something here and their since its already running his tune? so guys what do you think? Thanks!

 

Your tuner is correct, both parts will effect the tune, especially then WGA.

 

thanks for the reply!