G-Tech Motorsport BMW G80 M3 / G81 M3 / G82 M4 / G83 M4 – Equal Length Z-Pipe Crossover Midpipe

Part Number: GTM-S58-ELZP-001

The G-Tech Motorsport Equal Length Z-Pipe Crossover Midpipe has been engineered for BMW S58 owners looking to unlock a more refined exhaust tone while improving overall exhaust flow. Designed with a precision equal-length crossover, this system balances exhaust pulses from both turbochargers, producing a deeper, smoother and more exotic exhaust note compared to the factory midpipe.

At the heart of the system is a precision 3D-printed 316L stainless steel Z-pipe crossover, allowing for an exceptionally complex internal geometry that cannot be achieved using conventional fabrication methods. This advanced manufacturing process enables smoother exhaust flow, improved gas velocity and a true equal-length design while showcasing an exceptionally high level of engineering. Although significantly more expensive to manufacture, the 3D-printed crossover provides superior precision, consistency and durability compared to traditionally fabricated alternatives.

The remaining pipework is manufactured from premium mandrel-bent T304 stainless steel, delivering excellent corrosion resistance, outstanding durability and OEM-quality fitment.

Whether paired with the factory rear silencer or an aftermarket exhaust, the G-Tech Motorsport Equal Length Midpipe transforms the driving experience with improved sound, enhanced flow and sharper throttle response.

Key Features

• Precision 3D-Printed 316L Stainless Steel Z-Pipe – Advanced crossover manufactured using state-of-the-art 3D printing technology for exceptional flow characteristics, precise equal-length routing and industry-leading engineering.
• Equal Length Exhaust Design – Balances exhaust pulses from both turbo banks for smoother flow, improved scavenging and a distinctive high-performance exhaust note.
• Non-Resonated Construction – Delivers a louder, more aggressive exhaust tone with increased character throughout the rev range.
• Mandrel-Bent T304 Stainless Steel Pipework – Precision TIG welded for maximum strength, corrosion resistance and long-term reliability.
• Optimised Exhaust Flow – Reduces backpressure to improve exhaust efficiency and throttle response.
• Enhanced S58 Sound – Replaces the factory uneven exhaust character with a deeper, smoother and more exotic tone.
• Direct Bolt-On Fitment – Designed to utilise the factory mounting points with no cutting or welding required.

Vehicle Compatibility

Compatible with all 2021+ BMW S58-powered models:

• BMW G80 M3 Sedan (RWD & xDrive)
• BMW G81 M3 Touring (xDrive)
• BMW G82 M4 Coupe (RWD & xDrive)
• BMW G83 M4 Convertible (xDrive)

What's Included

• G-Tech Motorsport Equal Length Z-Pipe Crossover Midpipe
• Installation clamps and required fitting hardware (where applicable)

Important Information

• OPF/GPF-equipped vehicles may require software coding or recalibration following installation, depending on vehicle specification.

Production & Delivery

Each G-Tech Motorsport Equal Length Midpipe is built to order to ensure the highest manufacturing standards.

• Production Time: Approximately 5–8 business days before dispatch.
• Orders are carefully packaged and shipped using a tracked delivery service.

Please Note

• As this product is custom manufactured to order, all sales are final unless the item arrives faulty or has been damaged during transit.