Unitronic UH027-EXA Downpipe and High Flow Cat Audi and VW 2.0T AWD

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The Unitronic UH027-EXA Downpipe replaces the restrictive factory downpipe with a larger, 76mm stainless steel mandrel-bent system, featuring a high-flow catalyst,V-band clamps, and various other features. Expect better throttle response and significant power gains, all while remaining civilized during normal daily driving.

The Unitronic downpipe features a smooth 80mm to 76mm turbo to downpipe transition designed to maximize flow and minimize turbulence. This transition then feeds into the 76mm T304 Mandrel bent stainless steel tubing to a 200 cell metal matrix catalytic converter in the OEM position to ensure quick warm up. After the HFC an O2 sensor bung is placed in the OEM position to allow installation without wiring modification. An 8" flex section is welded in after the O2 sensor to account for engine movement under hard throttle. From there a v-band flange is used to attach to the midpipe which then terminates in another v-band which can attach to an aftermarket exhaust or into the included 76mm to 65mm adapter to allow connection of the OEM catback if needed.

Unitronic Unitronic UH027-EXA highlights:

  • T304 stainless steel mandrel bent tubing:
    Quality material that will not rust and will outlast your vehicle.
  • T316 stainless steel v-band flanges:
    Durable and rust proof.
  • Direct bolt-on fitment with OEM mounting locations:
    Uses factory mounting locations on the engine and front subframe.
  • Locked V-band Rotation:
    Secures downpipe to the engine to prevent v-band flange rotation.
  • Factory catalytic converter position:
    Ensures catalyst warm up and efficiency.
  • 200-cell metallic matrix high-flow catalyst:
    Highly durable with minimal power loss.
  • OEM-inspired catalytic converter heat shield:
    Reduces radiant heat in the engine bay.
  • 80mm to 76.2mm turbo to downpipe transition:
    Allows a smooth flow transition from turbine housing to 3" piping.
  • OEM oxygen sensor placement:
    No need for O2 sensor extension or modification of the wiring harness.
  • Corrugated stainless steel flex section:
    Allows engine movement without stressing the factory mounts.
  • TIG welded construction:
    Professionally hand welded to assure longevity.
  • Unique v-band fastening system featuring Clampco® clamps:
    Maintains perfect alignment while insuring a leak proof connection.

Unitronic UH027-EXA Exhaust Vehicle Fitment:

Unitronic UH027-EXA Downpipe Manufacturing:
The Unitronic Downpipe is constructed of 3" T304 stainless steel mandrel bent tubing, T316 stainless steel flanges, a corrugated stainless steel flex section, 200-cell high flow metallic catalytic converter and TIG welded fabrication. V-band clamps and rings are included.

Unitronic UH027-EXA HFC Install:
Installation of Unitronic downpipes typically takes 3-4 hours. Basic hand tools are necessary for installation, no cutting or welding is required. Please observe all safety precautions and follow proper installation guidelines while working on your vehicle.

Unitronic performance hardware products are backed by a limited-lifetime warranty to the original owner against manufacturer or craftsmanship defects. In the unfortunate circumstances that you must take advantage of this warranty coverage, proof of original purchase from an Authorized Unitronic Dealer must be provided. Some products require professional installation and therefore installation must be performed by Achtuning or equally qualified professional VW / Audi specialty workshop to qualify for warranty coverage. Please contact Unitronic at 1.866.341.2447 for more details.
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