Milltek Sport Cat-Back Exhaust - 2016-2018 Audi TTS Mk3

This Milltek Sport cat-back exhaust fits the 2016-2018 Audi TTS coupe (Mk3, 8S) with the 2.0 liter turbo four. Milltek makes non-resonated and resonated cat-backs for the Mk3 TTS, with polished or black tips and an optional downpipe for a full turbo-back system. 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. The Audi TTS Mk3 parts are T304L stainless steel with mandrel-bent tubing, which keeps the pipe at 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 76.2 mm (3 in) T304L stainless steel pipework, and bolts to the factory mounting points.

How to Choose

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

Then pick an Exhaust Tip Finish: Polished (bright polished stainless), Cerakote Black (a black Cerakote ceramic coating). The finish changes the look only, not the sound.

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 200-Cell HJS Downpipe keeps a 200-cell high-flow catalytic converter made by HJS. Milltek recommends an ECU remap with it. 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 Audi TTS Mk3.

Features

• 76.2 mm (3 in) T304L stainless steel pipework
• Mandrel-bent and made to bolt to the factory mounting points
• 2 tip finishes
• Catted and catless options explained in How to Choose

What's Included

• Rear silencer
• The other Milltek parts for the version you choose
• Exhaust tips in the finish you choose
• The downpipe you choose, if you add one

Specifications

Fitment Notes

• Fits the 2016-2018 US-market Audi TTS coupe (Mk3). Not for the TT 2.0T or the TT RS.
• The optional downpipes are made to join a Milltek cat-back: catless (off-road or track only), with a 200-cell HJS sports cat, or with a hi-flow sports cat. All are race products and Milltek recommends an 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.