Scorpion Non Resonated Cat Back Exhaust System For BMW F20 & F21 M135i (including xDrive Models)

The Scorpion Non-Resonated Cat-Back Exhaust System for the BMW F20/F21 M135i (including xDrive models) is a high-performance upgrade designed to unlock a louder, more aggressive exhaust note and improved flow compared to the restrictive factory system. Built with 80mm (3.15”) T304 stainless steel mandrel-bent pipework, this system reduces back pressure, sharpens throttle response, and enhances the driving experience of BMW’s N55-powered hot hatch.

Available in two variations, the system allows owners to choose the setup that best suits their driving style:

• With Valve – retains factory valve functionality for switchable sound modes

• Without Valve – for a consistent, more aggressive exhaust tone

To complete the look, the system is offered with three premium tailpipe finish options:

• Polished 100mm Daytona Tailpipes

• Black Ceramic 100mm Daytona Tailpipes

• Carbon Fibre 100mm Ascari Tailpipes

Key Features:

• Compatible with BMW F20/F21 M135i (2012–2016, incl. xDrive models)

• Non-resonated cat-back system – louder, more aggressive tone than resonated systems

• Pipe diameter: 80mm / 3.15” stainless steel mandrel-bent tubing

• Choice of system type: With Valve (switchable modes) or Without Valve (fixed tone)

• Three tailpipe options: Polished Daytona, Black Ceramic Daytona, or Carbon Fibre Ascari

• Improves exhaust flow, throttle response, and overall performance feel

• Direct fit to OEM or Scorpion components

• Constructed from T304 stainless steel for durability and corrosion resistance

• Designed, developed, and manufactured in the UK since 1992

• Covered by Scorpion’s lifetime guarantee*

Compatibility:

• BMW F20 M135i 5-Door (2012–2016, incl. xDrive)

• BMW F21 M135i 3-Door (2012–2016, incl. xDrive)

Upgrade your BMW M135i with the Scorpion Non-Resonated Cat-Back Exhaust System – a stainless steel performance upgrade that delivers a more aggressive soundtrack, sharper response, and your choice of Daytona or Ascari tailpipe finishes.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.