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Audi TT 225 3" Downpipe

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  • Product Description

    Bolt-On Horsepower and Torque

    42 Draft Designs 3” downpipe is the single most effective bolt-on upgrade for the Audi TT 225. No other basic physical modification can compete with the power gains delivered by this fundamental upgrade. Simply by reducing backpressure we’re able to create useable horsepower and torque throughout the power band while also improving turbo spool and throttle response.

    Fabricated here in the USA, our exclusive downpipe for the 1.8T engine installs without permanent modification. Precise pipe routing and a stainless steel flex section assure hassle-free fitment.

    Street Series downpipes are equipped with a 200/cell high-flow catalytic converter. Race Series downpipes include only a test pipe for track day. Included adaptor reduces pipe size to utilize the OEM band clamp.

    To configure this downpipe to meet your specific needs please browse the available options above. More information about our exhaust systems is available by following the links below

    Exhaust System Construction  |  Exhaust Options Explained  |  Exhaust System FAQ

    Important Fitment Note

    If your car is still equipped with OEM engine/transmission/dogbone mounts fitment issues may arise. As these vehicles age, OEM mounts tend to sag due to the weight of the engine and transmission hanging from the rubber mounts. This may cause the downpipe to make contact with the rear subframe. It is HIGHLY recommended that you replace your engine and transmission mounts to avoid fitment issues and potential rattles. Replacing the dogbone mount is a good start, but it will not always fix the issue if the motor is hanging too low.

    TT225 downpipes now feature an adjustable turbo flange to help with fitment issues related to worn mounts. The adjustment may allow subframe clearance unless the mounts are too worn.


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  • Vehicle Fitment

    This downpipe is known to fit the following vehicles:

    • 1999-2006 Audi TT 225 Quattro
    • Included adaptor allows fitment to stock exhaust
    • Will fit any cat-back exhaust that reduces to stock diameter

    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.

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