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42 Draft Designs Downpipe for Audi MK1 & VW MK4 (Aluminized Steel) (3" Piping) (Race Series) (2.5" Adaptor)

SKU: EX-04-015

Availability: built to order, ships directly from 42 Draft Designs

Manufacturer's Suggested Retail Price $410.00

42 Draft Designs

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42DD 3" Downpipe

Replacing the factory downpipe and catalytic converter is an important step when upgrading any 1.8T. The factory downpipe and cat is incredibly restrictive. Reducing backpressure at the turbo exit instantly increases turbo response, horsepower and torque. Since the 1.8T first hit the streets, performance shops and enthusiasts have proven that downpipe upgrades provide a healthy power increase. We choose 3" for maximum gains. Why not go all out?.


Construction Highlights

  • CNC mandrel bent aluminized steel tubing
  • CNC waterjet cut 1018 cold roll steel flanges
  • Professional TIG welded construction throughout
  • 409 stainless steel 200/cell metal catalytic converter (street series only)
  • Stainless steel double-braided flex section
  • OEM multi-layer turbo gasket
  • Triple layer high-temperature graphite gaskets
  • Grade 5 locking hardware



  • Will bolt up to 42's 3" flanged catback or any other catback using the correct size adaptor



  • Every 42 Draft Designs exhaust system is scratch-built from straight tube and flat steel. 42's team of professional metal fabricators cut, bend and form raw materials with precision. Piping is mandrel bent in-house using our Baleigh CNC mandrel bender. Flanges and brackets to fit each system are cut on our OMAX waterjet. Additional forming takes place using their Huth end forming equipment and our Dake 100 ton press. They use ONLY the finest North American made materials proven to stand the test of time.


Build Time:

  • Build times will vary thourghout the year. Please contact us for an estimated build time.

Additional Info

Additional Info

Weight 15.0000
Box Size N/A
Manufacturer 42 Draft Designs
Country of Manufacture United States
USA Location Millersville, MD
Warranty Lifetime Warranty
Installation Instructions (PDF) N/A
Rebates (PDF) N/A

Application Guide

Make Model Drivetrain Chassis / Year Engine
Audi TT FWD MK1 (2000-2006) 1.8T
Volkswagen Golf, GTI FWD MK4 (1999-2005) 1.8T
Volkswagen Jetta, GLI FWD MK4 (1999-2004) 1.8T
Volkswagen New Beetle FWD MK4 (1998-2005) 1.8T


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