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APR Cast Downpipe System 4.0 TFSI - (C7 S6/S7/RS7)

by APR
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The APR Cast Downpipe Exhaust System replaces the restrictive factory catalyst cross pipes and resonators with an upgraded 76mm stainless steel mandrel-bent system, featuring port-matched cast inlets, high-flow catalysts and various other features. Expect better throttle response, more horsepower and an intoxicating exhaust note, while remaining civilized during normal daily driving. It's the best performance upgrade for the 4.0 TFSI following the APR ECU Upgrade and it's all designed and assembled in-house, using premium materials and world-class manufacturing techniques few can match.

More power and better response

  • Expect a decrease in turbo lag with power and torque gains as high as 49 HP and 95 FT-LBS of torque over APR Stage I!

Full 76mm downpipe system

  • The APR system is a full downpipe upgrade as it replaces the kinked 60mm catalyst cross pipes and resonated midpipes with straight through, 76mm mandrel-bent tubing.

T304L stainless steel construction

  • Premium grade T304L stainless steel resists corrosion and stands the test of time.

Compatible with the OEM catback exhaust

  • Bolt-on and go! The system is fully compatible with the factory catback exhaust.

All hardware and instructions included

  • New OEM gaskets, oxygen sensor harnesses, clamps, brackets and install instructions are included to make the install as headache free as possible.

APR Stage II ECU Upgrade price waived

  • With every APR downpipe purchase comes a free upgrade to Stage II from Stage I, saving consumers hundreds of dollars!

Limited lifetime warranty

  • The best system on the market also carry the best warranty in the industry!
  • Brand: APR
  • Part #DPK0014