Select Vehicle From Dropdown

Exhaust - 3" Performance Cat-back (RACE) - Valved - (JHM) for C7-S6 4.0T



* Required Fields


JHM 3" Performance (RACE) Cat-back Exhaust with OEM Valve System for C7 S6 4.0T IS NOW AVAILABLE!


This meticulously crafted exhaust system is tailored to deliver unparalleled power gains and a thrillingly aggressive exhaust note, while preserving the factory OEM Exhaust Valve technology to ensure an authentic Audi driving experience.



 Crafted from premium-grade stainless steel, the JHM Exhaust 3" Performance Cat-Back is built to deliver superior performance. Its mandrel-bent piping ensures optimal exhaust flow and minimized backpressure. The innovative valved design not only enhances performance but also retains the factory-style exhaust valves for a comfortable, OEM+ feel without any compromise on performance.


Why 3" Inch piping diameter? Through extensive research, calculations, and testing, we have determined that the optimal piping diameter for the 4.0T engine is 3 inches. Anything smaller would restrict exhaust flow and result in choking the engine's turbos, hindering performance. Our findings have been carefully considered in the development of our exhaust system to ensure maximum efficiency and power output for your vehicle.






• 3inch In-house Mandrel Bent System for Optimal Flow and Performance
• Non-Restricted High-Flow Exhaust System for Optimal Power Gains
• American T304 (.065) Stainless Steel for Optimal Durability and Longevity
• High-Quality 304 Stainless Steel Clamps
• High-Flow Rear Muffler Design
• In House Mandrel Bent Piping
• Quad 3.5" USA Made Stainless Steel Hand-Polished Exhaust Tips
• CNC Adjustable Exhaust Hangers for Maximum Adjustability
• Retains Factory Exhaust Valve System
• 100% USA MADE





Our JHM Exhaust 3" Performance Cat-Back system is designed to deliver impressive results, with reduced turbo-lag and increased top-end power. These improvements may vary depending on your downpipe configuration and supporting hardware. To achieve optimal exhaust flow and performance gains, we recommend pairing our system with our JHM 3" 4.0T Downpipes. Get ready to experience a significant increase in turbo performance and take your Audi to the next level.




For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout.

This product fits the following vehicles:
Make Model Chassis Engine
Audi S6 C7-C7.5 (2013-Present) 4.0t V8 32v
Write Your Own Review
You're reviewing: Exhaust - 3" Performance Cat-back (RACE) - Valved - (JHM) for C7-S6 4.0T
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

Learn More:

Q and A

Product Questions

Do you make a resonated version?
You may also be interested in the following product(s)