My son has a '15 SHO and has been having a little fun with aftermarket tuning and minor bolt ons. He replaced the down-pipe and cat back, and has an aftermarket tune from Unleashed. Puts the hurt on a lot of folks who don't expect much from a Taurus. :)
I am getting ready to order a Roush Stage 2 supercharger kit from my '13 GT (AT). The car has about 11,000 miles on it. What else should I do? Are headers/exhaust necessary? Does the Roush tune for their Stage 2 kit contemplate/compensate for upgraded exhaust? Or will that require...