True automotive passion comes in many forms. We've found driving euphoria with our new ECS Catback Exhaust System. 

Enjoy your B7 S4 with the most engaging, race-inspired, performance catback 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 Catback 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 integrated x-pipe, your choice of either a resonator or a resonator delete section, and then to the 3-chamber, in-house designed mufflers. With this system, you, the driver, are in control of where the exhaust gases go from here. Each system is available with your choice of either chrome or black chrome, clamp-on, "pivoting" exhaust tips that accentuate this expertly assembled exhaust system with a perfect finish. With clamps securing each tube in position and allowing multiple degrees of rotation in combination with our ECS Swivel Exhaust Tips, you have the ability to fine-tune the location of each component. 

When paired with our standards of quality and design requirements here at ECS Tuning, we can provide your B7 S4 with a perfect blend of performance and an interactive driving experience. 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 Catback 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:​

• Full Lifetime Replacement Guarantee on ALL components to the original purchaser!
• 2.5" T304 Stainless Steel Mandrel Bent Tubing
• Integrated X-Pipe
• 1/2" Stainless Steel Exhaust Hangers
  • Welded in OE locations for precise fitment
• Single Tailpipe Section
  • Adjustable tailpipe to center section
  • ECS logo plate in the center divider
• Maximum Adjustability 
  • Clamps allow several degrees of component rotation
  • ECS Swivel Exhaust Tips allow for precise fit and finish
• Fully TIG Welded
• Factory-like fitment -- no modifications required!
• All hardware needed for installation
• Clamp-on 3.5" Swivel Exhaust Tips