42DD MK4 Turbo-back Exhaust System

Maximum Power - Precision Fitment - Incredible Sound

If serious power gains and exquisite sound is what you're looking for; consider the search officially over. Our 1.8T turbo-back exhaust systems provide instant results: significant horsepower and torque gains, high performance sound, and worry-free fitment. More than just a pile of pipes, our turbo-back systems are precision fabricated from CNC machined flanges, CNC mandrel bent piping, Magnaflow mufflers, and mirror polished tips. The result of our meticulous metalworking is a heavy duty exhaust system that fits like it should and outperforms the competition.

Modular by design, our turbo-back systems are available in street or race configurations. Street series systems include a Magnaflow 200 cell catalytic converter. Race series systems include a test pipe. On race day the cat can be easily swapped for a test pipe. Six unique tip fitments allow our turbo-backs to fit any mk4 1.8T.

Our 1.8T turbo-backs are technically a combination of our 3" downpipes and our 2.5" & 3" cat-backs. Repeating the features of our downpipes and cat-backs would only make a long story longer.

One feature our downpipes and cat-backs can't boast on their own is power gain. In our extensive testing we were able to dyno test a 'typical' mk4 and measure the changes. We used a relatively stock 2002 GTI 337 edition. The car was chipped, had a cold air intake and an aftermarket diverter valve. No other engine modifications were made to the car. Equipped with stock exhaust, we drove the car thoroughly and dyno tested it. The stock exhaust was swapped out for our 3" turbo-back system and the car was driven to adapt then dyno tested again. With weather conditions literally exact we measured peak gains of 22.5 hp and 48 lb/ft to the wheels! Power gains were felt all over. Boost was built faster and held out longer with the stock turbocharger. No power losses were felt at any point in the powerband.

Turbo-back pricing varies by series, pipe size and tip fitment.

Construction Highlights

  • CNC mandrel bent 14 gauge tubing
  • CNC machined 1018 cold roll steel flanges
  • Professional TIG welded construction throughout
  • Magnaflow resonator & muffler
  • 304 stainless steel polished tips
  • Double layer graphite gaskets
  • Grade 5 locking hardware

Starting at: $770.00

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Starting at: $770.00

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  • Model: EX0418TB
  • Manufactured by: 42 Draft Designs

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  • +1(856)456-3335
  • Hainesport, NJ 08036
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