CTS Turbo has been dedicated to manufacturing performance parts for enthusiasts by enthusiasts since its inception. Our continued development of the B8 A4 platform is not limitted to FMIC kits or Turbo kits, our all new dual exhaust system is evidence of that. The CTS Turbo B8 A4 exhaust system is hand tig welded using the finest T304 stainless steel.

Each CTS B8 A4 exhaust is 100% tig welded, constructed using T304 Seamless Stainless Steel, and includes installation hardware and stainless steel clamps.   Lesser products can be had without stainless steel construction, or with seamed stainless steel, which can crack and decay over time.  The CTS Turbo B8 A4 2.0T exhaust increases turbo spool up, and peak power. Our catback is constructed using 2.5in T304 Stainless steel. It will bolt up directly to the OEM downpipe and our CTS high-flow downpipe. Fitment with other aftermarket downpipes has not been confirmed.

Product Details:

  • True Stainless steel exhaust
  • Aggressive sound under hard driving, but subtle when cruising
  • Water jet cut flanges
  • CNC mandrel bent stainless steel piping
  • Polished stainless steel exhaust tubing
  • 3″ stainless steel exhaust tips
  • Requires the use of Audi rear dual exhaust valence
  • Fits manual and auto transmission cars


To install CTS-EXH-CB-0013 on a 2009-2012 Pre-facelift Audi A4 2.0T, the following parts are required (not required for A4 Avant with dual exhaust):

  • S-line pre-facelift models: 8K0807521D1RR+8K080783301C or Non S-Line pre-facelift models: 8K0807521H01C
  • Passenger side rear heatshield: 8K0804172 (standard and S-Line)
  • Heatshield retaining clips: N90796502 (4) (standard and S-Line)
  • Rear exhaust hanger: 8K0253144M (standard and S-Line)
  • Hex nut: N90348411 (2) (standard and S-Line)


Facelift 2013+ models require custom rear diffuser available from many popular retailers; and same installation parts as above.


Vehicle Fitment


Make Model Year Generation
AUDI A6 2009 - 2011 C6
AUDI A6 2012 - 2017 C7
AUDI A7 2012 - 2017 C7
AUDI A4 2010 - 2017 B8/8.5


  • Warranty CTS Turbo

    12 Months
    All CTS Turbo products are warrantied against manufacturing defects for a period of 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement. Warranty on other manufacturers will be processed under their terms.

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