Audi RS3 8V Sportback 2015-2017 Secondary Cat Delete / Decat Mid Pipes / Midpipe (2.5in 63.5mm) – Cobra Sport Centre/Center Section Catless Bypass Straight Pipe Race Track Exhaust Upgrade

Turn up the iconic five‑cylinder soundtrack and unlock freer flow with this track‑focused secondary catalyst delete for the Audi RS3 8V Sportback (2015, 2016, 2017). Built by Cobra Sport for precise fitment and dependable quality, this replacement mid‑section swaps out the factory secondary converters to increase volume, sharpen response and let your RS3 breathe more easily. It is a direct bolt‑on part supplied with the required gaskets and fittings.

We have installed this setup for RS3 owners in our own workshop and the feedback is consistently brilliant. Expect a deeper, more aggressive tone without changing the primary cat, plus a noticeable reduction in exhaust restriction. If you want a louder, crisper, more motorsport‑inspired note from your 8V Sportback, this secondary cat delete pipework is the proven route.

Key benefits

• Direct replacement for the factory secondary catalyst sections on Audi RS3 8V Sportback 2015–2017
• 63.5 mm pipe diameter (2.5 inch) for improved gas flow and response
• Deeper, more purposeful exhaust note while retaining the primary converter
• Supplied with all relevant gaskets and fixings for straightforward installation
• Cobra Sport build quality with a full manufacturer guarantee

Fitment and notes

• Vehicle: Audi RS3 8V Sportback, model years 2015, 2016, 2017
• Section: replaces the secondary catalytic converters only
• Use: for motorsport and off‑road use only worldwide
• Warning: removing secondary catalysts can trigger an EML/CEL. An ECU remap or calibration is recommended to manage the light and optimise performance

Why choose this upgrade

This secondary cat delete, often searched as RS3 mid‑pipe, centre section, catless mid‑section, secondary cat removal, race pipes, straight‑through mid pipes or track cat delete, is ideal for enthusiasts wanting more sound and reduced back pressure without swapping the primary converter. It is a popular RS3 exhaust upgrade for drivers seeking a richer tone, faster spool feel and a more engaging driving experience.

Installed by specialists

Professional fitting is recommended. MJ Modifications in Warwickshire offers full installation services, alignment and aftercare. For a tailored quote and availability, email info@mjmodifications.co.uk.

What you get

• Cobra Sport secondary cat delete pipework, 63.5 mm bore
• Relevant gaskets and fittings
• Manufacturer guarantee

Customer results we have seen

• Noticeably louder and crisper exhaust character on throttle
• Smoother, freer revving feel thanks to reduced exhaust restriction
• Excellent fit and finish for quick, clean installation

Important information

This product is intended for race track and off‑road environments only. It should not be used on public roads. EML/CEL may illuminate after removal of the OE secondary catalysts. An ECU recalibration is advised to prevent warning lights and to stabilise power delivery.

Watch and listen

Hear an example of the Audi RS3 8V with secondary catalyst delete pipes installed.

Common searches: Audi RS3 8V secondary cat delete, RS3 mid section, RS3 centre pipe, RS3 2.5 inch mid pipes, RS3 cat bypass, RS3 track pipes, RS3 straight pipe centre section, Audi RS3 exhaust upgrade 2015 2016 2017 Sportback.