Kits Available: '86-'93 5.0L '94-'95 5.0L '96-'04 4.6L Two-Valve '96-'04 4.6L Four Valve '05-'09 4.6L Three-Valve
Turbo Horsepower offers single and twin kits for all year Mustangs. The kits come with all of the needed exhaust components, as well as an intercooler and upgraded fuel-system components. In addition, there are a few upgrade items so you can make even more power. The kits for the '94-'95 cars are exactly the same as those for the Fox-body. As with the Two-Valve kit the company offers, the Four-Valve kit comes with all of the needed suspension components to fit the pair of hairdryers and the respective piping within the engine compartment. Also included is a power-steering-reservoir relocation kit with the necessary brackets and hoses. With turbo upgrades available to make up to 1,000 hp, this kit is definitely something you should check out if you own a Four-Valve snake.
If you own a Three-Valve-equipped S197, you have two choices when it comes to bolting on a Turbo Horsepower kit for your Mustang: Do you want the single-turbo kit or the twin-turbo? The single-turbo kit comes with a Garrett T61 turbo and is a complete bolt-on kit, right down to the piping, fuel-system upgrades, and computer tune. The twin-turbo kit is a bit more involved, but worth the effort.
Kits Available: '86-'93 5.0L '94-'95 5.0L '96-'04 4.6L Two-Valve '96-'98 4.6L Four-Valve '98-'04 4.6L Four-Valve '05-'09 4.6L Three-Valve
HP Performance showcases a single-turbo system for the Fox-body cars that can increase the power of your '79-'95 Mustang by a whopping margin. HP's Stage 1 kit is capable of 400-500 hp at the flywheel, though other stages that increase power to 1,500 hp are available. In addition, HP kicks the kit out the door with the required exhaust and fuel-system upgrades.
HP's kit for the Four-Valve engine is the same one it has made available for the Two-Valve crowd. It comes with the complete front suspension, as well as a pair of turbos capable of 900 hp right out of the gate. The company offers two kits for the '05-and-up Mustang-one a single kit and the other a twin. The single (pictured) is capable of 450-500 hp out of the box, though you can upgrade it to 1,000hp status. It comes with a 60mm turbo, as well as required fuel-system upgrades.
The twin-turbo system is much, much wilder. This kit is capable of 900 hp in Stage 1, though you can upgrade to 1,800hp rock-star status at the flick of a couple of credit card numbers. Call HP Performance for more specifics on its twin-turbo kit, which will set you back $6,395.