BMW G8X M2/M3/M4 S58 CenCal Valved Stainless Steel Catback Exhaust
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60 Second Sound Clip:
Our G8X M2/M3/M4 Stainless Steel Valved Catback delivers the tone, flow, and quality that the S58 deserves. Built from T304 stainless steel with full valved functionality, this system sounds incredible whether you're cruising quiet or running wide open.
T304 Stainless Steel Construction
T304 stainless steel is the industry standard for high-performance exhaust systems. It offers superior corrosion resistance, handles extreme heat without warping, and maintains a clean finish over time. Every pipe is mandrel-bent for smooth airflow, and every joint is TIG-welded for strength and a factory-quality finish.
Valved Sound Control
Quiet mode for the morning commute. Wide open for when you want the neighborhood to know you're leaving. The integrated valve system puts full control of your exhaust note at your fingertips. Every system includes the valve controller and all wiring for a plug-and-play setup.
Maximum Flow, Minimum Restriction
Less restriction, more power. Our single mid-pipe design is engineered for maximum sound output and the least possible restriction, letting the S58 breathe exactly how it should. Pairs with stock, catted, or catless downpipes.
Bolt-On Fitment
Engineered for direct fitment with OEM mounting points. A built-in flex section handles drivetrain movement and makes installation straightforward. No cutting, no guesswork, no headaches.
Tip Options
Multiple exhaust tip designs available to match your setup and your style. Brushed tips are pictured.
Key Features
- T304 stainless steel construction
- Valved muffler with wireless controller
- Single mid-pipe for maximum flow and sound
- Mandrel-bent piping for optimized airflow
- TIG-welded joints throughout
- Direct bolt-on fitment with flex section
- Lighter than factory exhaust
- Multiple tip options available
What's Included
- Full T304 stainless steel catback exhaust system
- Valved muffler with controller and wiring harness
- All necessary hardware and gaskets
- Flex section for simplified installation
Fitment
- 2023+ BMW G87 M2 (S58)
- 2021+ BMW G80 M3 (S58)
- 2021+ BMW G82/G83 M4 (S58)
Lead Times
- Prep & Packaging: 5–7 days
- Oversized Freight Shipping: 7–10 days
Order Terms
Because each exhaust is built to order, all sales are final. By purchasing, you acknowledge and agree to these terms. This product is for off-road use only.
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Fitment guarantee
Engineered for your BMW. Guarantee applies with professional installation — if it doesn’t fit, we fix it.
Secure Checkout
Shop with confidence. Every order runs through encrypted PCI-compliant checkout, with Affirm financing available so you can mod now, pay later.
Real Support
Talk to real enthusiasts — not bots. Our team answers every email the same business day (Mon–Fri, 9AM–5PM PST) so you’re never left hanging when it comes to your build.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders take 24–48 hours to process once placed. Made-to-order items begin production after processing, while in-stock items are prepped, packaged, and ship within 3–4 days from our Oceanside, CA location (please allow extra time for packages to arrive during high-volume periods). Some items may be backordered—if so, we’ll email you with status and options. Freight items such as wheels, exhausts, trunks, and hoods require additional handling time and may ship separately.
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Customer Support
Real BMW-savvy humans here. We’re available Mon–Fri, 10am–5pm PT by email and phone/text for install questions, fitment help, or order updates. Send your year/model/trim (VIN if handy) and we’ll point you to the right parts fast.
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FAQ’s
Quick answers to the most common questions: fitment & compatibility, order changes/cancellations, build & lead times, international shipping & duties, and returns/exchanges. Start there for instant clarity—then reach out if you still need a hand.
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Contact Us
Need help choosing parts or tracking an order? Send an email to our support team, support@cencalmotorsport.com
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About Us
What started as a group of BMW enthusiasts tired of overpriced parts and limited options is now a brand trusted by thousands of owners nationwide.
We designed our own product lines from the ground up and built the production infrastructure to make them happen. No middlemen, no compromises. Just the parts we actually wanted on our own builds.
Now we operate out of Oceanside, California, engineering valved exhaust systems, carbon fiber, forged wheels, front-mount intakes, and more. Everything is designed in-house, tested on real platforms, and stocked locally for fast shipping.
This is just the beginning.