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Solo Motorsports / Audi D4 S8 4.0T Racing Down Pipes
Audi D4 S8 4.0T Racing Down Pipes

$1,200.00 $959.00



SMS is proud to offer our exclusive line of aftermarket exhaust products. Made of high quality 304 Stainless Steel these downpipes will not only improve the sound and performance of your vehicle, they will fit just like OEM. The sound will remain civil while cruising and daily driving. Then, under load, it will turn into a menacing machine! This product is also available with high flow CATS, please contact us for more info on these options.

  • Significant power gain
  • Faster turbo spool up
  • Better throttle response
  • Increase the life of your turbos 
  • Reduced temps under the hood
  • Adds a very nice tone to the exhaust
  • 100% bolt-on installation
  • Highest quality 304 stainless steel
  • OEM-spec bottom ball flanges
  • All brackets and mounts match OEM alignment


 This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. Installing this product will cause a check engine light, We suggest pairing this product with ecu software to prevent fault codes and check engine lights. Racing Downpipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified nor EPA certified. You are hereby warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.