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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
For Your Every Summer RSVP, with Code: SUMMER15
Description
APR Full Catback Exhaust System - Audi / B9 SQ5Introducing the APR Catback Exhaust System for the Audi SQ5 The APR Catback Exhaust System for the Audi SQ5 is a complete, high performance exhaust solution that runs the entire length of the vehicle from the catalyst back. The system is sold in two sections: The front post catalyst downpipes and midpipes, and the rear catback section. Inspired by the larger center pipe design of the higher output RS4 and RS5 models, this system is engineered to boost
Introducing the APR Catback Exhaust System for the Audi SQ5
The APR Catback Exhaust System for the Audi SQ5 is a complete, high-performance exhaust solution that runs the entire length of the vehicle from the catalyst back. The system is sold in two sections: The front post-catalyst downpipes and midpipes, and the rear catback section. Inspired by the larger center-pipe design of the higher-output RS4 and RS5 models, this system is engineered to boost performance, and elevate sound that's sure to make a statement! Crafted from premium materials and built with advanced manufacturing techniques, this system is designed to withstand harsh conditions and deliver lasting performance. Expect a bold, aggressive growl at wide-open throttle, along with an impressive gain of 10 horsepower and 12 FT-LBS of torque to all four wheels with the full system!
Unmatched Design and Precision Engineering
The APR Midpipe System includes downpipes and midpipes that travel post-catalyst in the engine bay to the underside of the vehicle, eliminating the factory resonators in the process. The APR Rear Catback System starts just after the midpipes but can be combined with our midpipe system to making this a true full-system upgrade. We've minimized restrictions with smooth transitions, oversized piping, and a straight-through muffler. Constructed from mandrel-bent T304 stainless steel with a brushed finish and TIG welding throughout, this exhaust system is as durable as it is striking. Installation is hassle-free, thanks to precision-fit brackets, OEM-style clip clamps, including adapter clamps making both systems compatible with either our systems, or the factory systems.
Inspired by RS Performance
Like the RS4 and RS5, this system features a reengineered exhaust routing design. It utilizes dual 2.5" (63.5mm) downpipes to dual 2.75" (70mm) midpipes pipes merging through a cast Y-junction into a massive 3.5" (91mm) midpipe, replacing the restrictive factory dual-pipe setup. The exhaust valve is fully integrated with the OEM control system, adjusting automatically to enhance sound during aggressive driving while maintaining a quieter profile during cruising. When closed, exhaust gasses route through the rear muffler featuring straight-through sound absorption technology and when open, bypasses the rear muffler all together.
Experience the APR Difference
Designed for enthusiasts seeking the perfect balance of power, sound, style, and quality, the APR Catback Exhaust System for the Audi SQ5 is a testament to engineering excellence. With its performance-driven design and durable construction, this system not only transforms your driving experience but also ensures years of reliable performance.
Features:
- Plug-and-Play with APR and factory system.
- Performance gains of 5 AWHP and 6 AWFT-LBS of torque on each system on their own or 10 AWHP and 12 AWFT-LBS of torque when combined.
- Premium T304 stainless steel construction with TIG welding for strength and durability.
- Optimized flow through dual 2.5” downpipes to 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 adjust 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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 2026 reviews
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Product Reviews
★★★★★ 5
Good product at a great price
Size: 16 AWG-100 ft
Used to wire my door speakers and it worked amazing
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Smaller than the original, but works well.
When I received it, it was so small that I thought it was a toy, or maybe for some 4cyl engine. It is significantly smaller than the original one. When I looked closer, the mount holes did line up, so I tried it. I did have to get shorter mount bolts.
To my surprise, it works great! I don't know what the longevity will be, but it made it through a busy august!
Considering the price and how small it is, I might just buy a second one to keep on board. Just in case.
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Reviewed in the United States on September 14, 2025
★★★★★ 1
Warning!!!
I was so impressed after install!! Fired right up faster that it ever has in the past, had the boat out about 8 times and CACK!!! They say they will stand behind the product and replace it, but do I risk another day ruined on the river?
Btw, I have a Volvo penta 5.0 21.5' Larson I/O
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Perfect fit and functioning. Excellent support
The starter fit perfectly, in my Mercruiser 4.3 from 2004, although it was awkward to replace on my engine due to space constraints. I had a few questions for the supplier and quickly received very descriptive answers. Now the starter works perfect in my boat. In all a very good choice which I really can recommend others.
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Reviewed in the United States on June 27, 2024
★★★★★ 5
New starter
Part came promptly and was a direct match to the original starter. I did a bench test prior to install and had no issues.
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Reviewed in the United States on July 16, 2025