True automotive passion comes in many forms. For us, we found it in our Cat Back Exhaust System for the Audi B7 A4 2.0T. 

Enjoy your B7 A4 with the most engaging, race-inspired, performance cat-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 downpipe, integrated y-pipe (completely void of resonators), and then to the 3 chamber, in house designed mufflers. The perfect way to unleash hidden horsepower in a modern turbocharged engine is to upgrade the restrictive factory resonator with a smoother, higher flowing unit. This is a great way to increase performance and add a nice growl to the exhaust note.  We showed max gains of 37 WHP and 37 WTQ on our B7 A4 equipped with our ECS Tuning Cat-Back, ECS Luft-Technik Intake, ECS Intercooler and Charge Pipe Kit, and a stage 2 tune

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

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 A4 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 Cat-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.

Features:​

• 2.5" T304 Stainless Steel Mandrel Bent Tubing on main system
  • 1.25mm wall thickness - for strength and durability
• 3" large bore downpipe with flex section 
• 1/2" barbed Stainless Steel Exhaust Hangers
  • Welded in OE locations for precise fitment
• Brushed T304 stainless steel muffler casing featuring stamped ECS logo
  • Adjustable tailpipe to center section
  • ECS logo plate in center divide
• 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 4" Swivel Exhaust Tips

NOTE: Aftermarket ECU software is required to keep MIL (Malfunction Indicator Lamp) off and is recommended to maximize performance gains as advertised.