G8X M2/M3/M4 Valve Controller - G80 M3/G82 G83 M4/G87 M2/F97 X3M/F98 X4M
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CenCal Motorsport G8X M2/M3/M4 Valve Controller – Unlock the Full Sound of Your S58
Bring your BMW’s exhaust to life with the CenCal Motorsport G8X Valve Controller, designed to give you full control over your factory exhaust valves at any time. Whether you’re revving at a show, cruising through the city, or starting up your car in the morning, this controller lets you command your exhaust tone instantly — no tune or permanent modification required.
Unleash the True Sound of Your S58
From factory, BMW limits when your exhaust valves fully open — especially at idle, in park, or at low RPMs. With the CenCal Valve Controller, you can override those restrictions and enjoy a deeper, louder, and more aggressive exhaust note on demand. Experience the raw character of your S58 engine exactly when you want it.
Plug & Play Installation
Our system is designed for simple, non-invasive installation using OEM-style connectors. No cutting, splicing, or coding required. The controller integrates seamlessly with your existing valve system and includes everything needed for setup.
Full Control at Your Fingertips
Use the included remote control to toggle your valves open, closed, or back to factory mode with the press of a button. Perfect for maximizing startup sound, spirited drives, or keeping things quiet when needed.
What’s Included
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Valve Controller Module
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Remote Key Fob
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Wiring Harness / Plug & Play Connectors
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Installation Guide
Fitment
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2021+ BMW G80 M3
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2021+ BMW G82 / G83 M4
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2023+ BMW G87 M2
(Also compatible with S58-powered F97 X3M & F98 X4M models)
Key Features
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Instantly open or close exhaust valves at any time
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Enhances turbo and exhaust sound dramatically
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Works with factory or aftermarket exhaust systems
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Plug & play installation – no coding or tuning required
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Maintain factory functionality with manual override
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High-quality construction designed for reliability
Experience the Sound You Paid For
Stop letting the factory software limit your car’s personality. The CenCal Motorsport G8X Valve Controller gives you total control over your exhaust tone, allowing you to enjoy the full sound, emotion, and performance of your S58-powered M car — exactly when you want it.
G8X M2/M3/M4 Valve Controller - G80 M3/G82 G83 M4/G87 M2/F97 X3M/F98 X4M
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
Buy with confidence
Fitment guarantee
Engineered for your BMW. Guarantee applies with professional installation — if it doesn’t fit, we fix it.
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Real Support
Talk to real enthusiasts. Our team answers every email same business day (Mon–Fri, 9AM–5PM PST) so you’re never left hanging when it comes to your build.
About Us
Cen-Cal Motorsport isn’t just a parts shop, it’s a lifestyle for BMW enthusiasts who crave performance, precision, and style. We’re all about taking your BMW to the next level with premium parts that bring out the beast under the hood while keeping its luxury look on point.
Your BMW isn’t just a car—it’s an experience. Whether you're upgrading for speed, handling, or simply flexing on the road, we’ve got the gear to match your passion.
Why settle for stock? Explore our lineup and see how real quality transforms the drive. Got questions? Hit us up anytime—your ride deserves nothing but the best.
win a single turbo e92 335i
We brought this E92 335i back from the dead — now it’s your chance to take the keys. From the yellow-powdered turbo and short-throw shifter to our full valved catback system, every inch of this build represents what CenCal Motorsport stands for: no halfway builds.
Every purchase of merch or quick entry gets you closer to owning this car. Whether you’re a die-hard BMW enthusiast or just chasing the dream of a true street-built machine — this is your shot.