APR Resonated Catback Exhaust System for Audi S3 (8V) | CBK0003

The APR Resonated Catback Exhaust System (CBK0003) is a premium performance and aesthetic upgrade for the Audi S3 (8V). This meticulously engineered system personalizes your vehicle’s sound and appearance while delivering unrestricted performance. Constructed from beautifully hand-crafted T304 stainless-steel with stunning Argon-back-purged TIG welding, it ensures exceptional quality and durability.

The system features a seamless transition from a single 3-inch pipe to quad 2.5-inch mandrel-bent brushed tubing via an ultra-smooth cast rear splitter. Brushed-finished, straight-through sound-absorption mufflers smooth the exhaust note to a deep growl, while an integrated Helmholtz resonator effectively reduces unwanted frequencies (drone). Cast valve housings allow for the retention of OEM electronic valve actuators, preserving factory sound control. The system is completed with removable 4-inch polished slash-cut exhaust tips for a classy motorsport look.

Features:

• Premium Construction: Built from corrosion-resistant T304 stainless-steel with high-strength Argon-back-purged TIG welding throughout.

• Optimized Flow: Features single 3-inch to quad 2.5-inch mandrel-bent brushed tubing and an ultra-smooth cast rear splitter for minimal restriction.

• Enhanced Sound: Includes straight-through sound-absorption mufflers and a Helmholtz frequency reducing resonator to deliver a deep growl while eliminating drone.

• OEM Compatibility: Features cast valve housings and brackets to retain the factory electronic valve actuators, preserving OEM valve operation.

• Aesthetic Finish: Completed with large, removable 4-inch polished slash-cut exhaust tips and a low-profile design suitable for lowered vehicles.

• Easy Installation: Designed as a direct bolt-on fit using rugged, precise mounting brackets and OEM-style clamps.

Product Contains:

• (1) 3" to Quad 2.5" Catback Exhaust Assembly (Resonated)

• (1) Ultra-Smooth Cast 3" to Quad 2.5" Rear Splitter

• (2) Brushed-Finished Mufflers and (1) Helmholtz Resonator

• (2) Cast Valve Housings/Brackets for OEM Actuators

• (2) Removable 4" Polished Slash-Cut Exhaust Tips

• (1) Complete Mounting Hardware Kit (Clamps and Brackets)

Important Note: The larger diameter piping and tips compared to stock contribute to the performance and aesthetic upgrades without increasing the overall weight of the system.

Warranty This product is supported by a Manufacturer's Warranty. Note: Manufacturer warranty terms are subject to change.

Installation Instructions