42 Draft Designs - 3" Cat Back Exhaust - TT 180Q
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42 Draft Designs cat-back exhaust system for the Mk1 Audi TT 180Q is a simple modification that delivers substantial results. Built right here in the USA, our cat-back system will transform your TT from a semi-boring grocery hauler to a race-inspired daily driver.
This cat-back exhaust system includes everything necessary to replace your factory exhaust system from the catalytic converter to the tail pipe. Slip-fit systems attach using the OEM band clamp. Flanged systems are designed to bolt to our downpipe when available. Additional options allow this system to be tailored to your tastes.
To configure this cat-back system to meet your specific needs please browse the options above. More information about our exhaust systems is available by following the links below.
Exhaust System Construction | Exhaust Options Explained | Exhaust System FAQ
This cat-back is known to fit the following vehicles:
2000-2006 Audi TT 180 Quattro
Slip Fit systems are designed to connect to the OEM exhaust using the OEM sleeve clamp.
Slip Fit systems will fit any aftermarket downpipe that reduces to the stock pipe diameter.
Flanged systems are designed to bolt to our Audi TT 180Q 3" Downpipe
This 180Q cat-back exhaust system features the same dual 4" tips used in our 225 cat-back. During installation the 180Q single tip rear valance must be converted to a 225 or 3.2V6 dual tip rear valance. This is easily achieveable using OEM parts.
Polyurethane transmission mount inserts are HIGHLY recommended for this application.
VW Mk4 Dogbone Motor Mounts - Stage 1 | VW Mk4 Dogbone Motor Mounts - Stage 2
*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.
180hp TT Owners Please Note
We are aware that many 180hp FWD and 180Q owners are converting to 225 turbochargers and exhaust systems. Before purchasing any of our TT exhaust components for your conversion, please contact us to discuss your project. The internet may say "it will fit," but our experience proves otherwise. There are distinct differences between the 180FWD, 180Q and 225 stock exhaust systems that many will deny. We have proven these differences and we urge you to contact us before purchasing exhaust parts for your conversion so that we may steer you in the right direction.