True automotive passion comes in many forms. For us, we found it in our Downpipe Back Exhaust System for the Audi B8 RS5

Enjoy your B8 RS5 with the most engaging, race-inspired, performance downpipe back exhaust system. 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 Exhaust System.

The full 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 in house designed downpipes, your choice of resonated or non resonated sections , integrated x-pipe, and then to the 3 chamber, in house designed mufflers. The perfect way to unleash hidden horsepower in a modern supercharged engine is to upgrade the restrictive factory catalytic converter and resonators with a smoother, higher flowing unit. This is a great way to increase performance and add a nice growl to the exhaust note. 

The resonated downpipe back system gives a fantastic exhaust note, a drastic improvement over stock, while not causing significant in cabin drone and is louder than our resonated cat-back option.  

When paired with our standards of quality and design requirements here at ECS Tuning, we can provide your B8 RS5 a perfect blend of performance and style. Through multiple design iterations and stringent product testing, we have engineered our exhaust system to not only free up horsepower but to provide trouble-free installation.

Our ECS Downpipe 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 and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.

Available Configurations:

Fully Resonated - Gives an aggressive OE+ sound with minimal drone

Resonated Downpipes & Non Resonated rear section - Our ECS Recommended configuration that is aggressive but without driving you or any of your passengers crazy during daily driving

Non Resonated Downpipes & Resonated rear section - If you want your 4.2 V8 to scream with minimal high RPM rasp 

Fully Non Resonated - May violate local decibel laws but all of the raw unadulterated exhaust noise that the 4.2 V8 has to offer

Features:  

• 2.5” (63.5mm) 304SS CNC mandrel bent construction, fully TIG welded with brushed finish.
• 2.5” (63.5mm) x 1.5mm wall downpipes with interlock flex sections for improved durability
• 2.5” (63.5mm) x 1.25mm wall midpipe and axle back sections for reduced weight.
• Integrated X-pipe
• Optional resonators to customize sound to your personal preference
• 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
• Retains factory diffuser mounted exhaust tips