Bolt-On Horsepower and Torque
42 Draft Designs 3” downpipe is the single most effective bolt-on upgrade for the Mk4 Volkswagen 1.8T. No other basic physical modification can compete with the power gains delivered by this fundamental upgrade. Simply by reducing backpressure we’re able to create usable horsepower and torque throughout the power band while also improving turbo spool and throttle response.
Fabricated here in the USA, our exclusive downpipe for the 1.8T engine installs without permanent modification. Precise pipe routing and a stainless steel flex section assure hassle-free fitment.
Street Series downpipes are equipped with a 200/cell high-flow catalytic converter. Race Series downpipes include only a test pipe for track day. Included adapter reduces pipe size to utilize the OEM band clamp. Additional cat-back adapter sizes are available.
To configure this downpipe to meet your specific needs please browse the options above. More information about our exhaust systems is available by following the links below.
This downpipe is known to fit the following vehicles:
- 1999-2005 VW Mk4 Golf, Jetta, GTI
- 1998-2010 VW New Beetle 1.8T
- 2000-2006 Audi TT 180 FWD
- Included adaptor allows fitment to stock exhaust
- Will fit any cat-back exhaust that reduces to stock diameter
Vehicle MUST be equipped with OEM Audi TT 225 exhaust manifold and K04-020, K04-021, or K04-023 turbocharger. Fitment with aftermarket turbocharger or exhaust manifold is NOT supported.
Polyurethane transmission mount inserts are HIGHLY recommended for this application.
*Model years listed are based on US models. European model years may differ. If shopping for a vehicle sold outside the US please match chassis designation before matching model year.