APR Catback Exhaust System for RS3 Sedan (8V) | CBK0041

The APR Catback Exhaust System (CBK0041) is a premium, hand-crafted upgrade designed to enhance the presence and performance of the Audi RS3 Sedan (8V). Constructed from high-grade T304 stainless steel with argon back-purged TIG welding, this system features dual 63.5mm (2.5") mandrel-bent tubing that provides an ultra-smooth, unrestricted path for the 2.5T 5-cylinder engine. The system is designed to provide a deep, sophisticated growl that highlights the unique 5-cylinder soundtrack while remaining refined enough for daily use.

To maintain full factory functionality, the system includes cast valve housings that accept the OEM electronic actuators, allowing for dynamic sound levels via the vehicle's drive select modes. The exhaust gases pass through straight-through, sound-absorption mufflers before exiting through massive 170x112mm ovalized Diamond Black tips. These tips offer a high-end, RS-inspired aesthetic that fills the rear valance significantly better than the stock units.

Key Features:

• High-End Construction: T304 stainless steel with beautiful TIG welding and a brushed finish for lasting durability and style.
• RS-Inspired Aesthetics: Large 170x112mm ovalized Diamond Black tips provide a classy, aggressive look.
• Retains OEM Valving: Integrated valve housings allow for plug-and-play use of factory electronic actuators.
• Optimized Flow: Dual 63.5mm mandrel-bent tubing increases diameter over the stock system to reduce backpressure.
• Refined Sound: Sound-absorption mufflers eliminate rasp and drone, replacing them with a deep, powerful growl.
• Lowered-Vehicle Friendly: Features a low-profile design to ensure adequate ground clearance on cars with aftermarket suspension.
• Precision Fitment: Rugged mounting brackets and OEM-style slip clamps ensure a simple, secure installation.

Technical Specifications:

Installation Instructions