
Mercedes GT63/GT63S Stainless Steel Valved Catback Exhaust | CenCal Motorsport
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CenCal Motorsport Valved Stainless Steel Catback Exhaust for Mercedes GT63/GT63S | Aggressive Sound & Performance Upgrade
Enhance your Mercedes-AMG GT63 or GT63S with the CenCal Motorsport Valved Catback Exhaust, precision-crafted from premium T304 stainless steel for long-lasting performance and a commanding exhaust tone. Designed for enthusiasts who want both power and control, this system allows you to switch between a refined tone and an aggressive growl—all at the push of a button.
Engineered to optimize exhaust flow, improve throttle response, and increase horsepower, this valved catback system is the perfect performance upgrade to match the GT63’s muscular personality.
Key Features & Benefits
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Premium T304 Stainless Steel Construction – Offers corrosion resistance, durability, and performance longevity under extreme conditions
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Valved Technology – Seamlessly switch between quiet and aggressive exhaust modes using the factory ECU or a stand-alone remote
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Custom Resonator Options – Choose resonated for a refined tone or non-resonated for maximum volume and raw sound
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Exhaust Tip Selection – Customize the rear-end aesthetic with multiple tip designs including round, quad, or stealth options
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Performance Gains – Enhanced exhaust flow for improved throttle response, increased horsepower, and torque throughout the rev range
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Precision TIG Welds – Delivers high-strength connections and visual appeal
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Fully Reversible – Allows for a return to OEM configuration without permanent modifications
Vehicle Fitment
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Mercedes-AMG GT63
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Mercedes-AMG GT63S
Production & Shipping
This system is made to order, with an estimated production time of 15–25 business days, followed by 7–15 business days for shipping.
Due to the manufacturing process, cancellations are not feasible once production begins.
Why Choose CenCal Motorsport?
Built for enthusiasts, by enthusiasts—CenCal exhausts deliver the perfect balance of performance, tone, and premium craftsmanship to transform your driving experience.
THIS PRODUCT IS FOR OFFROAD USE ONLY

Mercedes GT63/GT63S Stainless Steel Valved Catback Exhaust | CenCal Motorsport
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

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 vibes 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.


