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Exhaust Exhaust Pipes, Systems and Components

APR Tuning

Catback Exhaust System S3 Sportback (8V) / T-Roc Fits ROW Market Audi S3 8V and T-Roc APR

$3,112.95 $2,766.95 Save $346.00

SKU: A0CU CBK0004

In Stock
In Stock
Ships by Sep 14
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The APR Catback Exhaust System (MPN: CBK0004) is a hand-crafted T304-stainless-steel exhaust system with TIG-welding, brushed-finished mufflers for a deep growl, a Helmholtz resonator to reduce unwanted frequencies, strong bracketry, OEM-style clamps, a cast 3" to quad 2.5" rear splitter, cast valve housings for OEM electronic valve actuators, and removable 4" polished slash-cut exhaust tips.
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Part #: CBK0004

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, while our Helmholtz resonator reduces unwanted frequencies. 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. A cast 3" to quad 2.5" rear splitter creates an ultra-smooth transition, steadily feeding exhaust gasses out of the system, while looking tidy from under the rear bumper. 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.

Features:

  • T304 stainless-steel construction
  • Argon-back-purged TIG welding throughout
  • Single 3" to quad 2.5" mandrel-bent brushed tubing
  • Ultra-smooth cast 3" to quad 2.5" splitter
  • Brushed-finished straight-through sound-absorption mufflers and Helmholtz frequency reducing resonator
  • Polished 4" slash-cut exhaust tips (removable)
  • Cast valve housings and brackets for OEM electronic actuators
  • Rugged and precise mounting brackets
  • OEM style slip clamps and Torca AccuSeal T304 tip clamps
  • Direct bolt-on fit
  • Low-profile design, suitable for lowered vehicles
  • Larger diameter piping compared to stock
  • Larger diameter tips compared to stock
  • No increase in weight compared to stock
  • In-house design with world-class manufacturing and quality control
  • Easy to install

Fits ROW Market Audi S3 8V and T-Roc

Vehicle Symptoms
  • Exhaust drone at highway speeds
  • Rust and corrosion on factory exhaust
  • Rattling noise from exhaust system
  • Stock exhaust too quiet for my taste
  • Exhaust leak causing hissing sound
Relevant Conversations
  • APR catback exhaust system review
  • best catback exhaust for Audi S3
  • catback exhaust install difficulty
  • APR exhaust drone vs stock
  • catback vs axle back exhaust which is better
  • how to improve exhaust sound without drone
  • APR catback with APR downpipe
  • exhaust system comparison: APR vs AWE
  • catback exhaust for improved horsepower
  • T304 stainless steel exhaust benefits

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAPR Tuning
Part NumberA0CU CBK0004

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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