True automotive passion comes in many forms. For us, we've found driving euphoria with our new ECS Valved Axle Back Exhaust System. 

Enjoy your C7 RS7 with the most engaging, race-inspired, performance-valved exhaust mufflers. Intoxicating exhaust notes fuel your desire to push your engine to its limits with every ounce of power and every engine revolution. Experience your driving passion with our ECS Valved Cat Back System allows for MMI control and operation of the valves

The muffler only exhaust system is made from high quality brushed T304 stainless steel with TIG welded joints for an exceptional look and durability. Exhaust gases are channeled through the 3 chamber, in house designed mufflers. With this system, you, the driver, are in control of where the exhaust gases go from here. 

In normal, comfortable driving conditions, the valve remains closed and exhaust gases are directed through the channels of the mufflers, where sound reduction takes place. Once the exhaust valved are opened it unleashes a straight-through, raw, unedited exhaust symphony.

When paired with our standards of quality and design requirements here at ECS Tuning, we can provide your C7 RS7 a perfect blend of performance and an interactive driving experience. Through multiple design iterations and stringent product testing, we have engineered our axle back exhaust system to not only free up horsepower but to provide trouble-free installation.

Our ECS Valved Axle Back Exhaust System was designed, engineered, tested and quality inspected by our Research and Development team in our Wadsworth, Ohio facility. We strive for the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.

Features:

• 2.75” (70mm) 304SS CNC mandrel bent construction, fully TIG welded with brushed finish.

• Utilizes factory exhaust valve motors to integrate into the OE valve controller

• Allows for MMI control and operation of the valves

• ECS designed muffler and resonator internals with stainless steel wool packing

• Utilizes factory exhaust hangers throughout system

• All required gaskets, hardware, and clamps included with kit

Optional cat back section see ES4660698

Note: for installation there are cut lines marked on the factory exhaust. Simply cut on the lines to remove the factory mufflers and install our muffler set with the provided adapers and clamps for a simple install.