Specials

ALTA Performance™ MINI Cooper S 2.5” Stainless Steel Exhaust

Cooper S owners constantly complain about annoying resonances and the overall mundane sound of the stock exhaust system. Our SPORTONE™ exhaust system sounds, looks and of course performs the way the factory system should have. The exhaust note is pleasant and lively at idle while giving a sporty, throaty growl under hard acceleration. All of this without annoying resonances at high idle or while cruising the interstate!

Click here to shop for this MINI Cooper S 2.5” Stainless Steel Exhaust.

The ALTA Performance™ exhaust system combines a show quality exhaust with a high horse power tuner system. The 2.5” diameter tubing (at least .25” larger than competitive systems) is perfect match to the high revving, supercharged power plant in the Cooper S. The enlarged dual exhaust tips will retain an aggressive factory look.

While perfectly suited for otherwise stock Cooper S's, the system is a real power builder on Cooper "S" equipped with our S/C pulley, intake system and other engine modifications. Stock cars should expect 15 Wheel HP gains (see charts). This system works best with stock or lightly modified (bolt on performance) engines.

The ALTA Performance™ exhaust system deviates from traditional MINI Cooper exhaust system design in favor of high horsepower output.

The ALTA Performance™ exhaust system directs exhaust gases through large 2.5 inch diameter, high polish, stainless steel piping. Two strategically placed 2.5 inch in/out mufflers reduce the sound volume down to a low growl while the strait through design provides maximum air flow. One thing that makes the system very different from the rest is the routing. Many other aftermarket systems use 2 mufflers (like OEM system) on each side of the car. This adds extra weight, and complexity to the system. Not to mention installation time can be longer. The ALTA 2.5” exhaust is a single sided exhaust. This means that the 2.5” tube travels down the center of the car, and down one side, then out the center. This routing is simpler, lighter, and very clean looking. ALTA choose to offset the system to the passenger side of the car, to help offset the weight of the driver. The "S" shape of the ALTA™ Exhaust system creates the highest exhaust gas velocity possible while maintaining the factory exhaust tip location. The system also utilizes flanged connections instead of slip fits. This makes for a solid easy to install system with little need for adjustment.

Below is a dyno test done on a 06 Mini Cooper S. This was tested with the OEM intake system in place, 15% Version 2.0 pulley, and no other mods except the ALTA Performance™ 2.5" catback exhaust.

Click here to shop for the MINI Cooper S 2.5” Stainless Steel Exhaust.