Roush Need to tune car after Accufab 75mm TB?

justin said:

Just wondering if you have to have the car tuned after installing a new throttle body on a supercharged car?

Click to expand...

You can if you want, but not necessary. The gains aren't big enough to offset the money you'll spend on a custom tune.

I installed a JLT cold air and Accufab 75mm throttle body at the same time and ran that combo for quite a while until I saved up for a cobra tank & pumps, injectors, pulley, and SCT Xcal2 before I tuned.

You'll be fine if you just do the swap...