MK4 TDI Downpipe – XS-POWER ALH 1.9 TDI Resonated Downpipe (1999-2005 Golf / Jetta / Beetle)
MK4 TDI Downpipe – XS-POWER ALH 1.9 TDI Resonated Downpipe (1999-2005 Golf / Jetta / Beetle)
Upgrade the exhaust system on your Volkswagen MK4 TDI with the XS-POWER Version 2 Resonated Downpipe, designed specifically for 1.9L ALH Turbo Diesel engines from 1999–early 2005.
This performance MK4 TDI downpipe improves turbocharger efficiency by reducing exhaust backpressure and increasing exhaust flow, helping the turbo spool faster while improving overall engine performance.
The integrated resonated section helps control exhaust tone and reduces unwanted drone, making it a quieter alternative to fully catless non-resonated downpipes while still delivering excellent performance gains.
Perfect for enthusiasts upgrading their MK4 Golf TDI, Jetta TDI, Bora TDI, or New Beetle TDI exhaust systems.
Key Features
• Designed for Volkswagen 1.9L ALH TDI engines (1999–early 2005)
• Fits MK4 Golf TDI, Jetta TDI / Bora TDI, and New Beetle TDI
• Resonated center section reduces exhaust noise and cabin drone
• Improves turbo flow and reduces backpressure
• 2.5" downpipe outlet from turbocharger
• Includes 2.25" reducer to connect to stock or aftermarket exhaust systems
• Reducer can be removed for full 2.5" custom exhaust setups
• Compatible with standard 3-bolt turbo flange used on ALH engines
What’s Included
• XS-POWER Resonated ALH Downpipe
• 3-Bolt Turbo Gasket
• Exhaust Clamps
• Installation Hardware
Fitment
Fits Volkswagen ALH 1.9 TDI engines
1999-2005 Volkswagen Golf TDI (MK4)
1999-2005 Volkswagen Jetta TDI / Bora
1999-2005 Volkswagen New Beetle TDI
⚠ Will NOT fit gasoline engines
Installation Notes
Professional installation is recommended.
• Removal of catalytic converter may trigger a check engine light (CEL)
• May not pass emissions testing in some states or countries
• 2002+ vehicles may require O2 sensor modification or ECU tuning
• Some setups may require minor exhaust adjustment depending on aftermarket exhaust systems
Not Sure If This Fits Your TDI?
If you are unsure which ALH downpipe you need, simply send us a photo of your current turbo/downpipe setup and we will help confirm compatibility before purchase.
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