Additionally, Roush is offering a stainless steel cat-back exhaust for most of the F-150 lineup that produces a more aggressive tone than the stock system. You can read more about the new F-150 ...

With the trademark Roush exhaust notes, it also sounds beefier than most four-bangers. Custom aftermarket components include Roush badging -- how else will everyone know it's a Roush?

and a full Roush exhaust ensures that the engine will breathe easy. Cobb Tuning, meanwhile, will be going the turbocharging route with its Focus. The car will boast forged pistons, a custom turbo ...