F90 M5 & F91/F92/F93 M8 S63R Cen-Cal Catless Downpipes (Primary & Secondary)
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Unlock the true potential of your BMW’s S63R engine with the CenCal S63R Catless Downpipes — the ultimate performance upgrade for maximum airflow, sound, and power. Designed to replace the restrictive factory catalytic converters, these downpipes allow your turbos to spool faster and breathe freely, delivering sharper throttle response, improved turbo efficiency, and a deep, aggressive exhaust note that amplifies the M experience.
Built with precision and engineered for both right-hand and left-hand drive applications, our S63R downpipes ensure a perfect fit and reliable performance. Whether you’re running a stock turbo setup or upgraded units, these downpipes are a proven way to extract serious performance gains from your M5 or M8.
Product Features
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Maximum Performance & Airflow:
Eliminates the factory catalytic converters to reduce backpressure and enhance turbo efficiency. -
Dyno-Proven Power Gains:
Expect up to +30HP on a tuned S63R with stock turbos — even greater gains with upgraded turbos. -
Optimized Design:
Smooth mandrel bends ensure unrestricted flow and improved exhaust velocity without drone. -
Flex Pipe Section:
Reduces vibration and mechanical stress for long-term durability and fitment stability. -
Precision Fitment:
Direct bolt-on design with spot-on alignment for both LHD and RHD vehicles. -
Lifetime Warranty:
Backed by our lifetime warranty against defects and fitment issues.
Compatibility
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BMW F90 M5 (2018–Current)
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BMW F91 / F92 / F93 M8 (2019–Current)
Installation
Professional installation is strongly recommended. A proper tune is required to prevent check engine lights and to ensure optimal performance and drivability.
F90 M5 & F91/F92/F93 M8 S63R Cen-Cal Catless Downpipes (Primary & Secondary)
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.