CAP Audi 2.0T Resonated Catback Exhaust System | 2015-2020 8V/8V.5 Audi S3

Please note, this is a pre-order item. The ETA for this 8V/8V.5 Audi S3 Catback Exhaust  is approximately September 30, 2026. All pre-order sales are final and cannot be canceled.

CAP Audi 2.0T Resonated Catback Exhaust System | 2015–2020 8V / 8V.5 Audi S3

The best sounding 2.0T exhaust in the world. Engineered for Sound. Built for Performance.

The 8V / 8V.5 Audi S3 is one of the most tunable and responsive 2.0T platforms on the market, but the factory exhaust system significantly restricts the engine’s true sound and performance potential.

CAP set out to develop a catback exhaust system that strikes the perfect balance between aggressive performance, sound, and refined daily drivability.

After extensive real-world testing and acoustic refinement, the CAP Audi 2.0T Catback Exhaust System was engineered to unlock the true character of the EA888 engine—delivering a deep, sporty tone under throttle while maintaining a comfortable, drone-free experience during cruising.

Introducing the CAP Resonated Catback Exhaust System, a complete exhaust solution for the 8V / 8V.5 Audi S3 is a complete performance upgrade designed to maximize both sound quality and exhaust flow.

Designed to Work With Your Setup

Many Audi S3 owners upgrade their vehicles with high-flow or catless downpipes, which can often introduce excessive rasp and harsh tones when paired with typical aftermarket exhaust systems.

The CAP Resonated Catback Exhaust System was designed to maintain a balanced and refined tone, even when paired with higher-flow exhaust components.

Combo Pairing

When paired with the CAP Catless Downpipe, the exhaust produces a smooth tone creating one of the best sounding exhaust combinations for the 8V/8V.5 S3 platform.

Designed to bolt directly after the factory catalytic converter, the system integrates seamlessly with:

• OEM catalytic converter
• High-flow aftermarket downpipes
• Aftermarket test pipes

Combo Pairing

Paired with our catless downpipe, the tone is nice

Key Benefits of the CAP Catback System

True Performance Sound

Carefully tuned mufflers and resonator design produce a deep, aggressive tone without excessive rasp or drone, giving the S3 the sound it should have had from the factory.

High Flow 304 Stainless Steel Construction

Constructed entirely from premium 304 stainless steel, ensuring long-term durability, corrosion resistance, and motorsport-level reliability.

Optimized Exhaust Flow

Mandrel-bent tubing improves exhaust flow over the restrictive factory system, helping increase horsepower, torque, and throttle response.

Precision TIG Welded Construction

Every system features CNC-machined flanges and full TIG welds for maximum strength and OEM-quality fitment.

Quad Performance Exhaust Tips

Available with quad gloss black tips, delivering an aggressive and premium motorsport-inspired rear appearance.

True Bolt-On Installation

100% bolt-on design using factory mounting points.

No cutting required.

All hardware included.

Real Performance. Real Sound. Real Fitment.

• Noticeably improved turbo response
• Deeper and more refined exhaust tone
• Aggressive under acceleration, comfortable during cruising
• Perfectly balanced sound for both stock and tuned vehicles

What’s Included

• Full CAP Audi S3 Catback Exhaust System
• Mid-pipe section
• Rear muffler assembly
• Quad exhaust tips
• Installation hardware (bolts, clamps, gaskets)

Built For Enthusiasts Engineered By CAP

The CAP 8V / 8V.5 Audi S3 Resonated Catback Exhaust System is designed for enthusiasts who want more than just noise. It delivers true performance gains, refined acoustics, and premium construction in a system built to last the lifetime of your vehicle.

If you’re looking for the best sounding and highest quality catback exhaust system for the Audi S3 2.0T, this is it.