Audi C8 A6 / A7 Downpipe Resonator Delete system

New product

By replacing the massive OEM catalytic converters with a REDSTAR EXHAUST downpipe and resonator delete we unleash all the potential that the 3.0t Turbo 55TFSI Engine has. Combined with ECU tune our system will hold any power you can get even with a big-turbo upgrade.

More details


  • Competition (Catless)
  • GESI GEN2 UHOX 400cpsi 6"
  • HJS HD 200cpsi 143mm
  • No
  • Yes
  • OEM
  • V-Band

Add to wishlist

Data sheet

Engine Type3.0L TSFI Turbo

More info

Compatible Vehicles:

  • 2018+ Audi A7 Sportback Sedan C8 55Tsfi 3.0 Turbo
  • 2019+ Audi A6 Sedan/Allroad C8 55Tsfi 3.0 Turbo

*Available Options:

  • HJS HD 200cpsi- Ultra High-Performance 1000+hp rated catalytic converters. Made in Germany most reputed converters for their outstanding characteristics, quality and durability.These extremely robust converters allow you to achieve flow numbers close to straight pipes while meeting strict Euro 5/6 emissions standards. >> Read more about HJS cats. 
  • GESI GEN2 400cpsi - catalytic converters rated for 1000hp. The new GEN2 series provides a significant improvement in exhaust flow over stock and offers the latest emissions technology. EPA Compliant catalytic converters have been third-party lab tested to meet or exceed local emissions standards in North America (excluding California). Ideal for forced induction and capable of withstanding up to 1,700F/ 925C core temp. At REDSTAR we rank them as the ones with the best performance/pollution reduction balance. >> Read more about G-Sport by GESI cats.
  • OE-style Heat Shielding with ceramic inner liner - signature REDSTAR thermal management feature that reduces radiant heat from the exhaust pipes up to 70-80%. Being inspired by racecar engineers who uses it alot, we moved heat shielding to the tuning industry and made it available as an option for any REDSTAR products. Usual thermal wraps or ceramic coatings are not even close in effectiveness and durability to our Heat Shielding. Please be aware of fake shielding when it is nothing but foil wrapped around the pipe. Without a sufficient ceramic wool layer inside and properly embossed foil it will not work as expected.
  • Vband Downpipe to Res Delete Connection 

Main Features:

  • Significant power gain
  • Faster spool up and better throttle response
  • Increasing the life of the turbos 
  • Reducing underhood temperature
  • Adds a very nice tone to the exhaust
  • 100% bolt-on installation
  • 100% TIG welded and back purged
  • Highest quality 2.0mm wall 304 stainless steel
  • OEM-spec flanges
  • All brackets and mounts as on OEM unit
  • LHD/RHD Compliant 
  • Lifetime limited warranty 


We offer WORLDWIDE shipping. Once you create your account your order will update with the appropriate shipping cost. Please, ask us for details and availability.


*This product is not designed to meet any emissions/noise standards and is not for street or highway use. This product is not certified and may not be legal for use on emissions controlled vehicles in any country/jurisdiction.