Audi B9 S4 / S5 Downpipe

Compatible Vehicles:

• 2017+ Audi S4 B9/B9.5 3.0t Turbo 
• 2017+ Audi S5 B9/B9.5 3.0t Turbo 

*Available Options:

• Ultra high-performance 200 cell HJS HD, Made in Germany most reputed high flow converters for their outstanding characteristics, quality and durability. These extremely robust converters allow you to achieve flow numbers close to straight pipes handling up to 1200hp while meeting strict Euro 6 emissions standards. >> Read more about HJS cats.
• GESI GEN2 400cpsi- catalytic converters rated for up to 1200hp. 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) >> 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.
• 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.

Main Features:

• 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
• flow-optimized smooth transition design
• 100% bolt-on installation
• 100% TIG welded and back purged
• Highest quality 2.0mm wall 304L stainless steel
• OEM-spec V-band flanges
• All brackets and mounts as on OEM unit
• Limited lifetime warranty 

Shipping:

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.

Notes:

ECU Tuning: To pair your Downpipes with a ECU or TCU Tune we highly recommend Eurocharged. Please visit their website or call +1-713-462-1600 to purchase. 

Read our Frequently Asked Questions.

Read our CEL Free Guide.