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CTS Turbo Test Pipe | B9 Audi | S4 | S5 | 3.0T | V6T

  • $549.99
    Unit price per 
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Brand: CTS Turbo

Part #: CTS-EXH-TP-0009

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CTS Turbo Product Description

CTS Turbo B9 S4/S5 cat-delete test pipe is made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts - unleash your B9 S4/S5 potential!

Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory catalytic converter. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.

In addition to unleashing the power and performance of your 3.0T, the CTS B9 S4/S5 test pipe will make your vehicle sound like an S-car really should. When installed with factory exhaust it produces a sporty growl with much more pronounced exhaust "crackle" on downshift. While up-shifting you will enjoy a confident "braappp!" as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system.

Product Details:

  • Precisely designed and tested on a real car in the real world
  • T304 stainless steel, TIG welded back-purged construction
  • Replaces restrictive factory catalytic converter
  • Install hardware included
  • Great power upgrade with uncompromising performance
  • Incredible sporty exhaust sound, subtle when cruising
  • No drone with factory exhaust
  • Stunning polished finish for great looks

To remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends choosing a High Flow Cat for the sake of our environment!

Use of stage 2 software upgrade is strongly recommended. CEL eliminators or oxygen sensor spacers are ineffective with B9 S4/S5 and will not help. For OFF-ROAD use only.

Download the installation guide: HERE



CTS Turbo makes performance aftermarket parts for late-model Volkswagen, Audi, and BMW models. From cold air intakes, catch can kits, performance exhausts, to turbo kits – the CTS Turbo team of engineers and fabricators is working hard to develop the best performance parts for your car.


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