Description
CTS Turbo is proud to announce the release of our BMW S58 G80/G82 M3/M3 Competition/M4/M4 Competition Crossover Pipe.
One area that can benefit from improvement is the exhaust system’s mid pipe design. The G80/G82 M3 and M4 utilize a Y-style mid pipe, with both downpipes located on the right side of the engine.
The left side downpipe connects to a “crossover” pipe that runs beneath the transmission and links up with the mid pipes on the left side. Unfortunately, the stock shape of the crossover pipe is oval to create enough clearance underneath the transmission. This alteration from a round tube to an oval causes turbulence within the pipe, leading to a restriction in exhaust flow.
We have developed a replacement crossover pipe that retains the round shape, eliminating the turbulence and restriction caused by the oval design. By doing so, we expect to significantly increase horsepower and torque, enhancing overall performance.
Features:
- Durable 304 food-grade stainless steel, 3″ or 76mm diameter
- Laser-cut flanges
- Designed using the latest 3D scanning technology
- LHD/RHD fitment
- Exhaust flow simulated with CAD software to ensure optimal flow routing
Fitment:
- 2021+ BMW S58 M3/M3 Competition
- 2021+ BMW S58 M4/ M4 Competition
NOT COMPATIBLE WITH AFTERMARKET SINGLE MIDPIPES.
FREQUENTLY ASKED QUESTIONS
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we'll keep you updated so you know exactly when your parts are leaving the pit lane.
Absolutely! Once your order ships, you'll receive an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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