Milltek Sport Cat-Back Exhaust - 2000-2004 Volkswagen GTI Mk4 1.8T

This Milltek Sport cat-back exhaust fits the 2000-2004 Volkswagen GTI (Mk4) with the 1.8 liter turbo four. The 1.8T GTI responds well to a freer-flowing exhaust, and Milltek offers it with twin polished tips or a discreet single-side exit. Each system is built for this exact chassis, so it follows the factory routing, hangs from the stock mounts and keeps the ground clearance of the original exhaust. Compared with the factory steel parts it is lighter, flows more freely and gives the engine a clearer, stronger voice under load, without the harsh highway drone of a cheap straight pipe. Every VW GTI Mk4 1.8T system is made from T304L stainless steel with mandrel-bent tubing, so the pipe keeps its full size through each bend and resists corrosion for years. It bolts on with the factory hangers and clamps, with no cutting or welding needed. It swaps the factory exhaust from the catalytic converters back, using 63.5 mm (2.50 in) T304L stainless steel pipework, and bolts to the factory mounting points.

How to Choose

Start with the System. Twin-Tip, Non-Resonated (Louder) drops the resonator for a louder, rawer note. Discreet Tips, Resonated (Quieter) keeps a resonator for a deeper tone with less drone when cruising. Twin-Tip, Resonated (Quieter) keeps a resonator for a deeper tone with less drone when cruising.

The Add Downpipe option bundles a Milltek downpipe with the cat-back. No Downpipe keeps your factory downpipe. Catless Downpipe (Milltek Cat-Back) has no catalytic converter. It is for off-road and track use only and needs an ECU remap, and it connects to a Milltek cat-back. Catted Hi-Flow Sports Cat Downpipe keeps a high-flow sports catalytic converter. Milltek recommends an ECU remap with it. You can also buy them on their own from the downpipes for the VW GTI Mk4 1.8T.

Features

• 63.5 mm (2.50 in) T304L stainless steel pipework
• Mandrel-bent and made to bolt to the factory mounting points
• Catted and catless options explained in How to Choose

What's Included

• Front Silencer Delete Pipe
• Axle Pipe
• Rear Silencer
• The downpipe you choose, if you add one

Specifications

Fitment Notes

• Fits the 2000-2004 US-market GTI 1.8T (Mk4). Please call us to confirm fitment on 2005 cars. Not for the GTI VR6 or R32.
• The Twin-Tip systems may need the 4Motion-style rear valance, per Milltek; the Discreet Tips system fits the standard valance.
• Both optional downpipes are race products designed to join a Milltek cat-back and need a Stage 2 ECU remap.
• Catless parts remove the catalytic converter. They are sold for off-road and competition use only and are not legal on public roads in the US.

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.