NEW STYLE NOW SHIPPING!

• New Double Walled Insulated Tips

• New V-band Flanged Joint for ease of installation, no chance of gasket failure and more adjustment

• Lighter weight
  

• Upgraded Hangers and bolts

• Choose from OVAL Single Tip or Dual Tips 

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!

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. 

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).

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.

The "S" shape of the ALTA™ Exhaust system creates the highest exhaust gas velocity possible while maintaining the factory exhaust tip location.

2/19/08 THIS ITEM IS FINALLY BACK IN STOCK. ORDERS SHIPPING NOW! THANK YOU FOR YOUR PATIENCE. 

2.5"304 SS Tubing

Most aftermarket exhaust systems for the Mini Cooper use the OEM system as a base design, and just install louder mufflers.  While being the simple way, it is not the best way.  With the amount of exhaust flow the Mini can produce with smaller SC pulleys installed, the 2.5"Diameter tubing is the best match for sound and performance.  The larger tubing is less restrictive, and CNC mandrel bent, which makes it far smoother of an exit that the stock system. 

Single Sided Design

One thing that makes our 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.  We choose to offset the system to the passenger side of the car, to help offset the weight of the driver. This small feature is something many of the weekend racers enjoy.

Our system also utilizes flanged connections instead of slip fits. This makes for a solid easy to install system with little need for adjustment.

Finish

The ALTA 2.5" system is made from 304SS which when polished to a mirror finish, stays beautiful forever!  That is why we fully polish our system. This also allows for the end used to easily clean system when it comes time for car shows! Our Stainless Steel tip is not polished at all, in fact it is chrome plated! This keeps the tips from turning gold as the extreme heat from the system heats the tubing. Another small but very benificial feature of the ALTA 2.5" exhaust.

For those who are a looking for something a little bigger, check out the 3" ALTA exhaust . 

Resonated Center Section with V-Band rear flange

V-Band Clamp

Rear Section

Tip Section with T-bolt mounting Clamp

Hangers for both early (2002-late 2003) and later models (Late 2003-2006)

Warranty

Stickers

Mounting Hardware

Primary Gasket 

Instructions 

Does not fit Convertible model without mods to rear-subframe brace. Contact us for details!

Fits ALL Cooper S models 2002-2006 

2.5" 304 Stainless Steel

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

The below graph is the second test with our cold air intake installed, and 15% Version 2.0 pulley. This shows another solid gain across the board with just getting rid of your restrictive stock exhaust! 

 
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