Downpipe For Audi RS4 B9 2.9TFSI Twin Turbo 2018+ Downpipe For Audi RS4 B9 2.9TFSI Twin Turbo 2018+

DTM-Tuning downpipes for the Audi RS4 B9/B9.5 with Porsche 2.9L. Our downpipes utilize a big bore design with smooth transitions for maximum flow efficiency. Long cones used to reduce the OEM 127mm turbo flanges to 89mm main diameter, which then goes down with second transition to 76mm.

Original style Heat Shielding with ceramic inner liner - signature DTM-Tuning 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 DTM-Tuning 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.

Straight Tunable 02 Spacers - Comes with 3 inserts to restrict flow to the 02 sensor and help set ready and prevent Engine Light conditions when using the Competition model without proper tuning.

Available Options:

• 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 DTM-Tuning we rank them as the ones with the best performance/pollution reduction balance.
• HJS HD 200cpsi- Ultra high-performance 200 cell made in Germany metal core catalytic converters. These extremely robust converters allow you to achieve flow numbers close to straight pipes while meeting strict Euro 6 emissions standards.

Compatible Vehicles:

Audi RS4 B9/B9.5 2.9TFSI Twin Turbo 2018+

Main Features:

• 3.5" single tube design;
• Eliminate both primary and secondary catalytic converters;
• Significant power gain;
• Faster spool up and better throttle response;
• Increasing the life of the turbos;
• Reducing under hood 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 V-band flange;
• All brackets and mounts as on OEM Audi unit;
• LHD/RHD Compliant;
• Limited lifetime warranty.

Kit number: RS.B9RS4.DP

Downpipe For Audi RS4 B9 2.9TFSI Twin Turbo 2018+, DTM-Tuning downpipes utilize a big bore design with smooth transitions for maximum flow efficiency.