Introducing the APR Rear Catback Exhaust System specifically designed for the Audi B9 SQ5. This exhaust system is not just a performance upgrade; it’s a transformation of your driving experience, bringing a richer, more aggressive exhaust note that will turn heads and elevate your daily commute.

Crafted with precision engineering, the APR Rear Catback Exhaust System is a direct bolt-on replacement for your factory exhaust. It can also be paired seamlessly with the APR Midpipe Exhaust System for those looking to unleash even more power and sound. Drawing inspiration from the high-performance RS models, this exhaust system is designed to enhance both performance and auditory pleasure.

Constructed from premium T304 stainless steel and featuring mandrel-bent piping, this exhaust is built to last. The system boasts smooth transitions and oversized piping, which significantly reduces restrictions and maximizes exhaust flow. Customers have reported noticeable gains in performance, with 5 AWHP and 6 AWFT-LBS of torque on its own, and up to 10 AWHP and 12 AWFT-LBS when combined with the APR Midpipe. One satisfied customer noted, "The sound is just incredible, and I can feel the difference in power right away!"

The unique design features dual 2.75" midpipes merging into a robust 3.5" midpipe, replacing the restrictive factory setup. An integrated exhaust valve works with the OEM control system, dynamically adjusting to your driving style—providing a more subdued sound during cruising and a thrilling growl when you push the pedal down. Another user shared, "I love that I can switch between a quiet ride and a roar when I want it!"

Installation is straightforward, thanks to precision-fit brackets and OEM-style slip clamps. Plus, an upgraded tunnel brace is included to accommodate the larger piping, ensuring a hassle-free setup. The system is also fully emissions compliant, so you can enjoy the performance boost without any worries.

• Plug-and-Play with APR Midpipe System or factory system.
• Performance gains of 5 AWHP and 6 AWFT-LBS of torque on their own or 10 AWHP and 12 AWFT-LBS of torque when combined with the APR Midpipe System.
• Premium T304 stainless steel construction with TIG welding for strength and durability.
• Optimized flow through dual 2.75" midpipes to single 3.5" midpipe exiting through dual 3" downturns.
• Mandrel-bent brushed piping paired with electropolished cast splitters for a refined finish.
• Precision brackets and slip clamps ensure accurate alignment and hassle-free installation.
• Integrated muffler minimizes drone and enhances sound quality.
• Valve-controlled rear muffler dynamically adjusts sound based on driving style.
• Smooth transitions and straight-through components maximize performance by reducing restrictions.
• Strikes the perfect balance of power, sound, style, and quality for enthusiasts.
• Fully emissions compliant for worry-free operation.

• Bending: Mandrel
• Brackets: Precise
• Brand: APR
• Category: Exhaust
• Clamp Style: Slip Clamp
• Clamps Included: Yes
• Exit Tube Diameter: 3"
• Material: T304 Stainless Steel
• Muffler Finish: Brushed
• Muffler Style: Sound Absorption
• Tube Connection: Butt Joint
• Tube Diameter: 3.5"
• Tube Diameter: 2.75"
• Tube Diameter: 3"
• Tube Finish: Brushed
• Valve Actuation: OEM
• Valves: Yes
• Version: Catback
• Welding: TIG

Upgrade your Audi B9 SQ5 with the APR Rear Catback Exhaust System and experience the perfect blend of performance, sound, and quality that enthusiasts crave.