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42 Draft Designs - 1.8T Downpipe
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42 Draft Designs - 1.8T Downpipe

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42 Draft Designs 3" Downpipe for 1.8T MK4 VW and FWD Audi TT Vehicles
  • $410.00
  • Shipping info

    We deliver worldwide: UPS, USPS, DHL - or pickup your order in Westlake, Ohio

  • Payment methods


  • Return Policy

    We accept returns; please see the Returns and Refunds Page for more info.

  • Weight
    35 lbs
  • SKU

Bolt-on more horsepower, torque and boost response!

Replacing the factory downpipe and catalytic converter is an important step when upgrading any 1.8T. The factory downpipe and cat is incredibly restrictive. Reducing backpressure at the turbo exit instantly increases turbo response, horsepower and torque. Since the 1.8T first hit the streets, performance shops and enthusiasts have proven that downpipe upgrades provide a healthy power increase. Internet rumors and opinions say 2.5" downpipes are "better" than 3" downpipes. We choose 3" for maximum gains. Why not go all out?

Their 3" downpipe begins at the turbo with a CNC machined turbo flange. A custom transition pressed from 1/8" thick steel provides a smooth reduction to 3" piping.  The piping is mandrel bent in one piece to add strength and eliminate unnecessary welds. A stainless steel flex section is used to absorb engine movement. After the flex section a CNC machined flange allows a 3" high-flow cat or test pipe to be installed.  A Magnaflow 200 cell metal catalytic converter in a spun stainless steel body. After the cat, custom adaptors allow perfect bolt-on fitment to any aftermarket cat-back. Offering adaptors for stock exhaust, 2.5" and 3" cat-backs. The whole downpipe bolts together with locking hardware and double layer graphite gaskets.

The modular nature of this downpipe allows the user to change configurations at any time.

Construction Highlights:

• CNC mandrel bent 14 gauge aluminized steel tubing
• CNC machined 1018 cold roll steel flanges
• Professional TIG welded construction throughout
• 409 stainless steel 200 cell metal catalytic converter
• Stainless steel braided flex section
• Double layer graphite gaskets
• Grade 5 locking hardware

Fitment Details:

• Fits 1999-2005 VW mk4 Golf, Jetta, GTI 1.8T
• Fits 2000-2006 Audi TT 180 FWD
• Fits VW New Beetle 1.8T
• This downpipe will NOT fit any Passat or Audi A4
• Available in street or race configuration
• Choice of 3 adaptors allow unrestricted fitment to any cat-back

Available Options:

• Catalytic Converter
• Adaptor Size


Make Model Year Engine
  • Finish
    Standard, Ceramic Coated
  • Series
    Race, Street w/ Catalytic Converter
  • Adaptor Size
    3in. Adaptor, Stock Sized Adaptor, 2.5in. Adaptor
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Most parts are available for local pick-up with no shipping or handling charge. Please select the in-store pickup option during checkout. Once we receive your order you will be contacted to schedule your pick-up.

Once your order has been shipped, and if the method of shipping has been assigned a tracking number you will be notified of the number. Please note that carriers such as UPS may not update the tracking number status until late in the evening when the daily pickups have been recorded.

In the event your order arrives and an item is damaged, notify HS Tuning within 5 business days after receiving shipment. Make sure to not discard the box(s), packing materials or broken/damaged product(s). If this occasion arises, we require that you obtain a damage claim number from UPS by calling 1-800-742-5877. During the call you will need to supply them with the information from your shipping label. After obtaining a claim number, contact HS Tuning. If a part is missing from your order, you must contact HS Tuning by either by phone at 216-577-7171 or email at This e-mail address is being protected from spambots. You need JavaScript enabled to view it within 5 business days of receiving your shipment. After 5 business days have passed, HS Tuning will no longer be held responsible.

We accept the following payment methods:

Returns, Refunds, Warranty

Returns will not be accepted after 30 days of purchase, and a 15% restocking fee applies to all orders that are not a result of an error made by HS Tuning. Returns will be refused if the part is not:
- In the original packaging and undamaged.
- Product has not been installed.
- Complete with all parts, manuals and print material.

Please note the following parts are not returnable:
- Electrical components
- ECU Software
- Repairs Manuals
- Tools
- Wheels and Tires
- Hand fabricated and custom parts
- All parts identified as special order

Before any item is returned, HS Tuning requires an RMA (Return Merchandise Authorization) number for all returns. RMA numbers can be issued by phone at 216-577-7171 or email This e-mail address is being protected from spambots. You need JavaScript enabled to view it

HS Tuning
Attn: Returns Department
30205 Clemens Road Unit A
Westlake, OH 44145

Your RMA number must be visible on the outside of the packaging in order for your return to be processed properly.

Product Warranty:

HS Tuning offers only quality products to its customers. If your part fails due to defects in workmanship or materials within the first year of ownership, contact HS Tuning and provide us with a copy of your original invoice as proof of purchase. HS Tuning will not refund money, but will work with you to replace or warranty parts. Either HS Tuning or the product manufacturer will test or inspect the product before a warranty claim adjustment is finalized. Any product that fails due to misuse, neglect, unintended application or improper installation will not be covered under any warranty. HS Tuning is not liable for consequential and incidental damages and/or costs incurred of any kind, including those caused by products sold by HS Tuning.

In addition to the parts listed above that are non-returnable, HS Tuning cannot offer any full warranty coverage on wearable mechanical items and electrical components.

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