Sometimes adding performance means being able to contain it

2011 Mustang GT owners are a lucky bunch. They can easily achieve “street-legend” status by eclipsing the 500 rwhp mark with nothing more than a supercharger. The 5.0L Coyote motor that is standard issue on the 2011 makes nearly 400 hp to the rear wheels in stock form!

Of course, with this type of power comes the need to harness it. This month we will take a close look at upgrading the stock clutch to a unit that can tame even the baddest ’Stang.

Our test subject is a stock 2011 5.0-powered GT belonging to Dan Oliver of Outperformance Shop. Big boost and big power are in this pony’s future, so Dan started shopping for a performance clutch system that would stand up to 500-plus rwhp and still offer street-friendly driving manners. Sounds like a tall order, right? A clutch that has race car levels of holding power and can be used as a daily driver. The solution: McLeod’s Street Twin clutch system.

The premise behind the McLeod Street Twin is to provide high-powered muscle cars with a street-friendly clutch kit that can handle over 1,200 hp (yes, 1,200). The use of organic-lined clutch discs ensures smooth clutch engagement and operation without any annoying clutch chatter. Furthermore, the use of two clutch discs effectively doubles the surface area of the clutch discs and yields extreme clamping power while still maintaining a very soft pedal effort. In short, McLeod’s Street Twin clutch kit for the 2011 5.0 Mustang offers the best of both worlds: unbeatable performance and civilized street manners.

McLeod offers their Street Twin in a few different configurations. We received part number 6338-00-02, which includes McLeod’s billet aluminum flywheel and organic-lined clutches, which are rated to 1,200hp. Our Street Twin assembly was a full 10 pounds lighter than the stock clutch/flywheel it replaced. The Street Twin is also available with a billet steel flywheel. Insanely powered Mustangs can even opt for the Street Twin with ceramic-lined clutch discs, which are rated to 1,800hp!

For this project, we visited the Mustang gurus at GTR High Performance (Rancho Cucamonga, California), which is an authorized McLeod dealer and installation center. GTR’s staff got a helping hand from Lee Kilcoyne of McLeod, who made the trip out to assist with the project. In several hours, the Mustang was Street Twin-equipped and ready to go. Do-it-yourselfers will want to allow considerably more time for a job of this magnitude. Although this project can be done at home, you will want to enlist a friend to provide help and moral support. Follow along as GTR and McLeod fortify Outperformance’s Mustang with a killer clutch kit that will stand up to the supercharger that is in its future.