

                  B58 DUMP TUBE M240 340 440 
                
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B58 Dump Tube for M240, 340, and 440
Elevate the performance of your B58-powered M240, 340, or 440 with this high-quality stainless steel dump tube. This direct-fit solution bolts seamlessly to the factory downpipe location, utilizing the original exhaust mount for a true plug-and-play installation. Designed for enthusiasts who demand both performance and practicality, this upgrade delivers lightweight efficiency and a superior turbo sound.
Key Features
- Weight Reduction: Shed nearly 150 lbs by removing the factory exhaust, improving vehicle handling and acceleration.
- Enhanced Turbo Efficiency: Free-flowing design maximizes airflow and ensures peak turbo performance.
- Aggressive Sound: Produces a powerful, performance-oriented exhaust tone that amplifies your driving experience.
- Damage Prevention: Directs exhaust flow safely to the ground, protecting your undercarriage from heat and debris damage caused by open downpipe setups.
- Durable Construction: Made from stainless steel for long-lasting performance and resistance to extreme conditions.
What’s Included
- Stainless steel dump tube with mounting bracket
- Sturdy exhaust clamp for secure installation
Fitment
All B58 powered M240,340, or 440
THIS PRODUCT IS FOR OFFROAD USE ONLY

B58 DUMP TUBE M240 340 440
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.


