3025-31022 Features:

The 2014-15 Audi R8 4.2L Exhaust Suite sets a new standard. Beyond the handcrafted detail that is standard for every AWE exhaust, this one packs a little something special: The R8 4.2L Exhaust incorporates a proprietary mechanical valve system that controls sound volume: Under part throttle and idle, valves route exhaust gasses through a central muffler, keeping sound tame and drone free. At 3/4 throttle application and more, the valves open, and the system is unleashed – going into "straight pipe" mode. An in-cabin-mounted electronic SwitchPath Remote toggles the mechanical valves between "normal" and "straight pipe mode." Practical. Important notes: - These exhaust products are for racing use only. - Customers with S Tronic cars must also purchase the Audi R8 S Tronic Exhaust Fitment Kit. If you have an R8 4.2L and you're looking to make one of the most meaningful evolutions available, this is your move.

• Peak power gains of +22 hp / +17 lb-ft at the crank
• 25 hp and 28 lb-ft of torque @ 4700 rpm
• 24-pound weight savings with SwitchPath system
• Valve Programming optimized for R8 engine characteristics
• CNC machined v-band connections
• Crafted from T304L stainless steel
• Designed and manufactured in-house at AWE
• No Check Engine Light - Guaranteed
• Fitment - Guaranteed
• Lifetime Warranty
• 180 Technology: No
• 50 State Legal: No
• Edition: SwitchPath Edition
• Fit Guarantee: Yes
• Material: T304L Stainless Steel
• No CEL Guarantee: Yes
• System Type: Cat-Back
• Tip Finish: No Tips
• Tip Qty: 0
• Tune Required: No
• Valves: Yes