Audi S3 (8Y) 5 door Sportback Race GPF Back Performance Exhaust

Unlock the soundtrack your 8Y S3 deserves with this Cobra Sport rear section upgrade for the five door hatch. Built from premium 76.2 mm 3 inch stainless steel and expertly TIG welded, it replaces the centre and tail section after the GPF to deliver an aggressive, motorsport-inspired note without touching the factory emissions hardware.

Designed for the latest quattro 2.0 TFSI EA888 platform, this non-resonated race set up brings sharper response and a harder-edged tone, perfect for enthusiasts who want drama on throttle yet livable manners on a cruise. We have installed this system for customers and the feedback on sound quality, fit and finish has been outstanding.

Why choose this upgrade

• Large bore 76.2 mm 3 inch mandrel-bent tubing for improved flow and future tuning potential
• Fits from the gasoline particulate filter rearwards GPF-back, retaining OE emissions components for MOT-friendly peace of mind
• Race non-resonated configuration for a louder, more aggressive exhaust note
• Choice of valved or non-valved layout to suit how you drive
• Precision TIG-welded stainless steel construction for durability and a premium finish
• Supplied with all required clamps, hangers and gaskets for a straightforward install
• No ECU calibration required

Sound testing - Race GPF-back non-resonated

Dynamic mode, engine at idle: 66.8 dB increase of 10.8 dB over stock

Static test at 3,500 rpm: 89.6 dB increase of 15 dB over stock

Valve control options

Valved system - retains factory valve functionality. Switching drive modes Comfort to Dynamic will continue to alter the exhaust loudness as before.

Non-valved system - removes factory valves. Drive mode changes will not affect volume. This does not affect engine operation. The Cobra Sport design provides a carefully judged fixed soundtrack.

Fitment details

Compatible with the 8Y-generation S3 five door Sportback only. Replaces the centre and rear sections after the GPF GPF-back. All hardware included.

Real-world benefits for your S3

• Deeper, richer tone with pronounced overrun character compared to stock
• Weight-saving potential versus the factory silencer assembly
• Enhances the 306 bhp EA888 experience while keeping the catalyst and GPF intact

Professional installation

Want it fitted by experts We can help. Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

What owners search for

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Buy with confidence from MJ Modifications. Upgrade your S3 today and enjoy a sharper, more exciting drive every time you press start.