ECS Tuning MK5 GTI 3.0in Exhaust System - Catback or Turbo Back

True automotive passion comes in many forms. For us, we've found driving euphoria with our in-house engineered ECS Tuning Exhaust System.   Enjoy your Volkswagen MK5  GTI with the most engaging, race-inspired, performance 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!   PART DESIGN CATBACK: In-house designed and engineered using FARO ARM laser scanning technology for precise fitment   3.0in T304 Stainless Steel Mandrel Bent, Brushed Tubing  with 1.25mm wall thickness 3.0in Tailpipe Section  with Tig-Welded 2.5in Dual Tip Outlets   T304 Stainless Steel 12mm barbed round stock exhaust hangers  Tig-Welded in OE locations for precise fitment Strategically placed slip joints provide the most adjustability to obtain perfect fitment VALVED MUFFLER: Tested multiple muffler designs to achieve  the most desirable exhaust notes with the largest delta between valve closed and valve open driving experiences   Valve Closed Routing - 3-chamber perforated reduction tubes with stainless steel wool packing material provides a sporty driving experience without causing excessive resonance, volume and performance loss Valve Open Routing - Straight-through 3.0in perforated tube with stainless steel wool packing material provides the most unobstructed flow path for race-inspired driving experience to maximize volume   Vacuum-actuated exhaust valve provides outstanding reliability in the harshest conditions. Unlike electronic servo motors that are prone to failure, our exhaust valves have been tested in thousands of applications and have proven to be reliable.   NON-VALVED MUFFLER: In-House designed to provide a sporty  driving experience like no other Perforated core with stainless steel wool packing for sound absorption     Straight Through inTurbo Stylein Muffler €‹Designed to maximize ground clearance while still being compatible with aftermarket components such as our  ECS Tuning Rear Subframe Brace.   DOWNPIPE (optional):   In-house designed and engineered using FARO ARM laser scanning technology for precise fitment   3.0in T304 stainless steel CNC-mandrel bent tubing with 1.5mm  wall thickness 10mm thick CNC laser-cut turbine flange prevents heat-warping and is precision ground for optimum gasket sealing capacity   Stainless steel bellow flex section designed to provide a wide range of engine movement and heat expansion 200 Cell high flow metallic catalytic converter   100% Tig-welded at each joint T304 stainless steel  mounting bracket with Tig-welded barbed hangers  locate  our downpipe to the OEM mounting bracket   Stainless steel oxygen sensor bungs are welded in OE-locations so no extension harness is required. €‹ KIT CONTENTS CATBACK: OE-Downpipe reducer with stainless steel Accuseal style clamps   Muffler Assembly   Tailpipe Assembly with Dual Tip Merge Pipe and  stainless steel Accuseal  clamps   ECS 3.5in Swivel Exhaust Tips (2) - Choose chrome, black chrome or carbon fiber Exhaust Valve Controller Installation Kit with Remote Key Fobs  (VALVED SYSTEM ONLY)   DOWNPIPE (optional): High-Flow Downpipe Assembly with 200 cell cat Downpipe Installation Kit (gasket, nuts and mounting bracket hardware)     PERFORMANCE FEATURES CATBACK CONFIGURATIONS:   Dyno tested on our in-ground Mustang inAWD 500 SEin Dyno with our ECS Tuning Shop MK5  GTI  while  equipped with our ECS  Kohlefaser  Luft-Technik Intake, APR Stage 1 ECU Software and the OEM downpipe.   VALVED SYSTEM:  Maximum gains of +26 WHP and +21 FT/Lbs of torque with the exhaust valve inopenin NON-VALVED SYSTEM:  Maximum gains +22 WHP and +18 FT/Lbs of torque   TURBO BACK CONFIGURATIONS:  Dyno tested on our in-ground Mustang inAWD 500 SEin Dyno with our ECS Tuning Shop MK5  GTI when bolting on just our Catback Exhaust System  while  equipped with our ECS  Kohlefaser  Luft-Technik Intake, ECS 3.0in High Flow Downpipe and APR Stage 2 ECU  Software   PRODUCT DEVELOPMENT Our ECS Tuning Exhaust Systems  were 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.     INSTALLATION AND SUPPORT Looking for installation tips? Look no further, we put together a full installation tutorial from start to finish including how to remove your OEM parts!  See our Installation PDF under the INSTALLATION Tab for more information.   Head over to our YouTube channel for our full feature video @ ECS Tuning!     NOTE: A boost tap is required for exhaust valve operation - See ES2718328, sold separately   The included remote key fob is used to open & close the exhaust valve.