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. Downpipes are equipped with a minimum 400/cell high-flow catalytic converter. 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.
Important Fitment Note
If your car is still equipped with OEM engine/transmission/dogbone mounts fitment issues may arise. As these vehicles age, OEM mounts tend to sag due to the weight of the engine and transmission hanging from the rubber mounts. This may cause the downpipe to make contact with the rear subframe. It is HIGHLY recommended that you replace your engine and transmission mounts to avoid fitment issues and potential rattles. Replacing the dogbone mount is a good start, but it will not always fix the issue if the motor is hanging too low. Note that some aftermarket motor mounts may slightly change the engine location which could affect exhaust alignment.
This downpipe is known to fit the following vehicles:
- Professional installation is highly recommended.
- 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
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.