Scorpion Resonated Cat Back Exhaust System For E85 & E86 BMW Z4

The Scorpion Resonated Cat-Back Exhaust System for the BMW Z4 E85 Roadster and E86 Coupe is a precision-engineered upgrade that enhances sound, improves flow, and reduces weight compared to the stock system. Designed specifically for the 2006–2009 Z4 3.0Si and 2.5Si Roadster (E85) and the 2006–2009 Z4 3.0Si Coupe (E86), this resonated system delivers a refined performance tone without excessive cabin drone, making it ideal for both daily use and spirited driving.

Constructed from T304 motorsport-grade stainless steel, the system features 50.8mm (2”) mandrel-bent pipework for optimised gas flow and long-term durability. It is designed to fit seamlessly to either the OEM exhaust or Scorpion components, ensuring easy installation and perfect alignment. Finished with polished twin Daytona trims, this system offers a timeless performance look that enhances the Z4’s styling while providing a deeper, sportier soundtrack.

Key Features:

• Compatible with BMW Z4 Roadster (E85) 3.0Si & 2.5Si (2006–2009)

• Compatible with BMW Z4 Coupe (E86) 3.0Si (2006–2009)

• Resonated cat-back design for a sportier tone while reducing drone

• Pipe diameter: 50.8mm / 2” mandrel-bent stainless steel tubing

• Constructed from T304 stainless steel for strength, corrosion resistance, and durability

• Features polished twin Daytona tailpipes for a premium finish

• Fits directly to OEM or Scorpion exhaust components

• Lightweight design compared to factory system

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

• Backed by Scorpion’s lifetime guarantee*

Compatibility:

• BMW Z4 Roadster (E85) 3.0Si & 2.5Si (2006–2009)

• BMW Z4 Coupe (E86) 3.0Si (2006–2009)

Upgrade your BMW Z4 with the Scorpion Resonated Cat-Back Exhaust System – delivering stainless steel durability, improved performance, and a refined soundtrack, finished with polished twin Daytona trims.

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.

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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.