This Unitronic Turbo-Back Exhaust System for the MK8 GTI equipped with the 2.0 TSI EVO4 engine features a CFD optimized upper downpipe section with a GESi 5" UHO+ catalytic converter which flows into 3-inch T304 Stainless Steel mandrel bent tubing a high density high temperature fiberglass wool packed muffler and high quality v-band fasteners with T316 Stainless Steel flanges.

These attributes combined with extensive R&D testing help ensure perfect fitment and maximum performance while maintaining a comfortable and unobtrusive exhaust tone inside the cabin.

Warranty Registration is REQUIRED for all products integrating GESi Catalyst(s) HERE.

• 3-inch T304 Stainless Steel Tubing:
  Top quality, rust-resistant material that will outlast your vehicle.
• Direct Bolt-On Fitment with OEM Mounting Locations:
  Uses all Factory mounting locations on the engine and on front subframe like the OEM exhaust.
• T316 Stainless Steel V-Band Flanges:
  Durable, rust-resistant and cnc machined.
• 400CPSI Catalytic Converter
  GESi 5” G-Sport UHO+ 400cpsi Catalytic Converter which meets or exceeds local testing standards
• TIG Welded Construction:
  Professionally TIG welded to ensure longevity, durability and top tier craftsmanship.
• 4-inch Corrugated Stainless Steel Flex Section:
  High quality flex with inner interlock that will stay leak proof for years. It allows engine movement without stressing the factory rubber mounts.
• Unique V-Band Fastening System Featuring Clampco® clamps:
  Maintain a perfect alignment of v-band flanges while ensuring a leak-proof connection every time. Fully reusable and quick to install with locked rotation.
• Sound Reflection Chamber Technology:
  Sound reflection chamber used to cancel unwanted sound frequency and ensure a deep tone.
• Sound Absorption Technology:
  Perforated chamber packed with High quality and durable high temperature Fiberglass wool. Ensure a deep tone and unwanted frequency absorption.
• Straight-through, free flowing muffler design:
  Optimal performance achieved by removing restriction and reducing back pressure.
• 4-inch Slash Cut Polished Exhaust Tips:
  Mirror polished tips engraved with the Unitronic logo. (black tips optional)

Hardware Included

• CFD Optimized Upper Downpipe Section
• GESi 5" UHO+ Catalytic Converter
• OEM-style corrugated mesh flex bellow
• Resonated Midpipe Section
• Fiberglass Wool Packed Muffler
• 4" Slash Cut Polished Exhaust Tips
• Locking V-Band Exhaust Clamps
• V-Band Sealing Rings
• All Necessary Hardware

Required Software

• Stage 2
• Stage 3

Related Hardware

• Cat-Back for MK8 GTI by Unitronic
• Unitronic Performance Downpipe for 2.0TSI EA888 EVO4 FWD
• Unitronic Performance Turbo-Back Exhaust System for MK8 Golf R

Meets or Exceeds Local Testing Standards

While working closely with GESi through several iterations of their G-Sport Emissions Systems Catalytic Converters over the years, our goal once again was to ensure this product would satisfy our compliance demands, while fulfilling Unitronic's performance related goals. The team quickly opted for a GESi 5" UHOX converter for this Performance Downpipe, which met the requirements for the 2.0TSI EA888 EVO4 engine, while being rated for a massive 1000HP.

Unbeatable Construction

Featuring 3-inch T304 Stainless Steel mandrel bent tubing, a quality material that won't rust and will outlast your vehicle, this MK8 GTI Turbo-Back Exhaust system is backed by Unitronic's limited 3-year warranty.

Sealing V-Band System

Unitronic Exhaust Systems feature a unique sealing v-band fastening system, using T316 stainless steel flanges and a locking ring to guarantee a centric alignment which ensures a leak proof connection every time.

Install

Featuring a unique v-band fastening system and engineered using the latest in 3D modeling technology, Unitronic Performance Exhaust Systems are made easy to install.

Downpipe installation instructions

Cat-Back installation instructions