Upgrade the exhaust system on a compatible Volkswagen MK4 1.9L TDI ALH turbo diesel with the XS-POWER Version 2 Resonated Downpipe, developed for the ALH-powered MK4 Golf TDI, Jetta TDI / Bora TDI and New Beetle TDI platform.

This performance MK4 TDI downpipe replaces the restrictive factory exhaust section downstream of the turbocharger with a larger-flow configuration designed to reduce exhaust restriction and improve the exhaust path leaving the turbo.

The downpipe uses a 2.5-inch outlet from the turbocharger and includes a 2.25-inch reducer for connection to compatible factory-size or aftermarket exhaust configurations. For custom 2.5-inch exhaust systems, the reducer can be removed and the larger 2.5-inch connection retained.

Unlike a basic straight-through non-resonated TDI downpipe, this Version 2 configuration incorporates a resonated center section to help control exhaust sound and reduce unwanted resonance and cabin drone.

This XS-POWER downpipe is intended specifically for compatible Volkswagen MK4 vehicles equipped with the 1.9L ALH turbo diesel engine and the applicable standard 3-bolt turbo/downpipe connection.

The ALH engine and turbo configuration must be confirmed before ordering. Do not order based only on vehicle model or body style.

• XS-POWER Version 2 resonated turbo downpipe
• Designed for compatible Volkswagen MK4 1.9L ALH TDI applications
• 2.5" downpipe outlet from the turbocharger
• Includes 2.25" reducer for compatible exhaust connections
• Reducer can be removed for applicable full 2.5" custom exhaust configurations
• Integrated resonated center section
• Resonator helps control exhaust tone and unwanted cabin drone
• Designed to reduce exhaust restriction compared with the restrictive factory exhaust section it replaces
• Higher-flow exhaust path downstream of the turbocharger
• Compatible with the applicable ALH 3-bolt turbo flange configuration
• Designed for performance and modified Volkswagen TDI applications
• Installation hardware supplied as listed below

A performance downpipe can significantly change the exhaust sound of a turbo diesel vehicle. A completely non-resonated exhaust configuration can introduce additional exhaust volume and resonance into the cabin.

The integrated resonated section in this XS-POWER Version 2 ALH downpipe is intended to help control unwanted exhaust resonance while retaining the freer-flowing configuration of the upgraded downpipe.

This makes the resonated design particularly useful for MK4 TDI owners who want a performance-oriented exhaust upgrade without automatically choosing a completely non-resonated downpipe configuration.

The downpipe features a 2.5-inch outlet from the turbocharger for increased exhaust-flow capacity.

A 2.25-inch reducer is supplied to provide additional flexibility when connecting the downpipe to compatible existing or aftermarket exhaust configurations.

For a custom exhaust system using a full 2.5-inch connection, the reducer can be removed where appropriate. Always verify the diameter and connection style of the exhaust system before installation.

The downpipe is one of the first major exhaust sections after the turbocharger. Reducing unnecessary restriction in this area can improve the exhaust path leaving the turbine housing.

A freer-flowing downpipe is commonly used as part of a modified ALH TDI exhaust system to support turbocharger and engine performance upgrades.

Actual performance results depend on the turbocharger, ECU calibration, exhaust system, engine condition and other supporting modifications. No specific horsepower or torque increase is guaranteed.

• 1 x XS-POWER Resonated ALH TDI Downpipe
• 1 x 3-Bolt Turbo Gasket
• Exhaust Clamps
• Installation Hardware

• Professional installation is recommended.
• Confirm ALH 1.9L TDI engine code before ordering.
• Confirm the applicable 3-bolt turbo/downpipe connection.
• Verify existing exhaust diameter before installation.
• Aftermarket exhaust systems may require adjustment or fabrication.
• Exhaust hardware should be checked after initial heat cycles.
• Modified vehicles may require additional installation work depending on the existing exhaust and turbo configuration.

This performance downpipe may alter or remove factory emissions-control equipment depending on the vehicle's original configuration.

Installation may cause diagnostic or emissions-related issues on some vehicles and may require appropriate vehicle-specific calibration or other modifications.

Emissions and road-use regulations vary by state, province and country. The purchaser and installer are responsible for determining whether this product is legal for the intended vehicle and use.

What engine is this downpipe designed for?
This downpipe is designed for compatible Volkswagen applications equipped with the 1.9L ALH TDI turbo diesel engine.

Will it fit a Volkswagen MK4 Golf TDI?
Yes, compatible MK4 Golf TDI applications using the ALH 1.9L engine are included in the supplied fitment information.

Will it fit a Jetta TDI?
Compatible MK4 Jetta TDI / Bora TDI applications equipped with the ALH 1.9L engine are included.

Will it fit a New Beetle TDI?
Compatible New Beetle TDI applications equipped with the ALH 1.9L engine are included. Verify the engine code and turbo connection before ordering.

What size is the downpipe?
The downpipe uses a 2.5-inch outlet from the turbocharger and includes a 2.25-inch reducer for compatible exhaust connections.

Can I use it with a 2.5-inch exhaust?
The supplied information states that the reducer can be removed for applicable full 2.5-inch custom exhaust configurations.

Why use a resonated TDI downpipe?
The integrated resonated section is intended to help control exhaust tone and reduce unwanted resonance and cabin drone compared with a completely non-resonated configuration.

Does this downpipe increase horsepower?
A freer-flowing downpipe can support performance modifications by reducing exhaust restriction, but actual horsepower and torque changes depend on the complete vehicle setup. No specific power increase is guaranteed.

Does this fit gasoline VW engines?
No. This product is intended for the specified 1.9L ALH TDI turbo diesel applications.

What if I am not sure which downpipe I have?
Confirm your engine code and compare the turbo/downpipe connection with the product photographs before ordering.