Audi B9.5 S4/S5 Stainless Steel Valved Exhaust
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Audi S4 B9 Full Valved Exhaust System by CenCal Motorsport
Unlock the true potential of your Audi S4/S5 B9's engine with CenCal Motorsport's full valved exhaust system. Designed to replace the restrictive factory exhaust, this system ensures your engine delivers an exhilarating sound experience up to the redline.
Key Features:
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Premium Construction: Crafted from T304 stainless steel for enhanced durability and corrosion resistance.
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Valved Exhaust Control: Equipped with electronic exhaust valves and a key fob remote system, allowing you to switch between aggressive and subdued exhaust notes seamlessly.
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Weight Reduction: This system is 16.4 lbs lighter than the OEM exhaust, contributing to improved vehicle dynamics.
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Optimized Flow: Fully mandrel-bent tubing ensures maximum exhaust flow, enhancing performance.
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Precision Engineering: Features TIG welds for high strength and reliability.
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Reversible Installation: Designed for a 100% bolt-on installation that is fully reversible, allowing you to return to stock at any time.
Fitment:
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2017 - 2024 Audi S4
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2018 - 2024 Audi S5
Experience unparalleled sound and performance with CenCal Motorsport's full valved exhaust system for your Audi S4/S5 B9. Whether you're seeking an aggressive exhaust note or a quiet ride, this system offers the flexibility and quality you desire.
This system is made to order, with an estimated production time of 15-20 days, followed by 5-7 days for shipping. Due to the manufacturing process of this system, cancellations are not feasible once production begins.
THIS PRODUCT IS FOR OFFROAD USE ONLY
Audi B9.5 S4/S5 Stainless Steel Valved Exhaust
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.