From 1995-2003, Roush Performance Products was formed offering aftermarket performance parts, vehicles and crate engines for street use. The company introduced four packages for the Mustang. The Summer Special Edition V6 with 17" chrome wheels, Stage 1 came with wheels, a lowered suspension and a side-mounted exhaust system. In addition, it came with an air dam, side skirts and a rear spoiler. Stage 2 was an upgraded Stage 1 with alloy wheels and BFGoodrich Comp T/A tires. The suspension was extensively modified with Bilstein shocks, high-rate springs, stiffer anti-roll bars and new control arms. Roush claimed it achieved 1.0g lateral acceleration and was on par with the Porsche 911 Turbo. Both Stage 1 and Stage 2 came with V6 or V8 engine options. The top of the line was the Stage 3, with 360 hp (268 kW) and 375 ft·lbf (508 Nm) of torque. The Stage 3 platform was essentially a heavily modified Mustang GT. The Ford 4.6L V8 was upgraded with an Eaton supercharger, a new intake manifold, high performing fuel injectors, an air-to-water intercooler and a lighter flywheel (on the manual transmission only). The Stage 3 was available in three packages: Sport, Rally and Premium. Note: (The Sport has the same variations as The Premium stage 3 but without the supercharger which can be added at a later date by customer.)