APR Catback Exhaust System - 4.0 TFSI - C7 S6 and S7 - CBK0009

SKU: CBK0009

Sale price$3,260.95
In stock



The APR Catback Exhaust System personalizes your vehicle's looks, sound and performance. Beautifully hand-crafted T304-stainless-steel components adorn the system with stunning TIG-welding throughout. Our straight-through brushed-finished mufflers smooth the exhaust note to a deep growl, without adding restrictions. Strong high-quality bracketry and OEM-style clamps hold the system steadily in place, making the install or removal a snap, and fitment simple, yet precise. Cast 2.75" to dual 2.5" rear splitter creates an ultra-smooth transition, steadily feeding exhaust gasses out of the system. Our cast valve housings enable the vehicle to be fitted with the factory electronic valve actuators, retaining OEM valve operation.  Finally, removable 4" polished slash-cut exhaust tips finish the system, adding a classy motorsport-inspired touch to the rear of the vehicle. Optional tip upgrades, and an optional center muffler / Center muffler delete is available.


  • T304 stainless-steel construction
  • Argon-back-purged TIG welding throughout
  • Dual 2.75" to quad 2.5" mandrel-bent brushed tubing
  • Ultra-smooth cast 2.75" to dual 2.5" splitters
  • Brushed-finished straight-through sound-absorption mufflers (optional center muffler delete)
  • Polished 4" slash-cut exhaust tips (removable and upgradable)
  • Cast valve housings and brackets for OEM electronic actuators
  • Rugged and precise mounting brackets
  • CNC bent and laser cut tunnel brace for added chassis rigidity
  • OEM style slip clamps and Torca AccuSeal T304 tip clamps
  • Direct fit to the OEM and APR Race DP exhaust systems
  • Low-profile design, suitable for lowered vehicles
  • Larger diameter piping compared to stock
  • Larger diameter tips compared to stock
  • In-house design with world-class manufacturing and quality control
  • Easy to install


Year Make Model Submodel Engine Size
2017 - 2018 Audi S7 Premium Plus 243/4L V8
2017 - 2018 Audi S7 Prestige 243/4L V8
2013 - 2015 Audi S6 Base 243/4L V8
2016 - 2018 Audi S6 Premium Plus 243/4L V8
2016 - 2018 Audi S6 Prestige 243/4L V8
2013 - 2016 Audi S7 Base 243/4L V8


Bending Mandrel
Brackets Precise
Brand APR
Center Muffler No
Clamp Style Slip Clamp
Emission Code 5
Exit Tube Diameter (in) 2.5
Material T304 Stainless Steel
Muffler Finish Brushed
Muffler Style Sound Absorption
Product Type Exhaust Catback System
Splitter Cast
Tip Count 4
Tip Diameter (in) 4
Tip Finish Polished Silver
Tip Style Single Wall
Tips Removable Yes
Tube Connection Butt Joint
Tube Diameter (in) 2.75
Tube Finish Brushed
Valve Actuation OEM
Warning California Proposition 65
Welding TIG

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