CTS Turbo B46 Downpipe for 2015+ Mini Cooper S, BMW X1/X2.
Reduce exhaust restriction and increase power with this bolt on solution from CTS Turbo. Manufactured using stainless steel, this TIG welded downpipe features a CNC V-Band flange and 4" piping allowing maximum flow to either the factory or aftermarket catback. Uncork your Mini or BMW with CTS Turbo performance parts!
- Now available for the 2015+ BMWÂ X1/x2 B46 Engine!
- Now available for the 2015+ Mini Cooper S, Clubman, Cabrio and Countryman.
- Horsepower gains of 14 to 16whp average (gains will vary based on modifications of your vehicle).
- Higher Max Horsepower Power Curve
- Torque gains of 20 wtq average (stock boost) up to over 24 wtq (Software upgrade)
- Higher Intial Torque Curve.
- Better throttle response and faster turbo spool up times.
- Mandrel Bent 4" piping.
- 100% Stainless Steel Construction
- 100% TIG welded for better quality welds
- Precision CNC machined turbocharger V-Band flange.
- Stainless steel flex section like factory that allows proper exhaust movement and flexibility.
- Compatible with the factory or aftermarket exhaust systems.
Fitment:
2015-2021 F54/F55/F56 Mini Cooper S
2016-2021 F48 BMW X1/X2
DOES NOT FIT F56 JCW
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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Project Incentives:
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
• AH25 — $25 OFF $500+ | • AH60 — $60 OFF $1000+
• AH180 — $180 OFF $3000+ | • AH400 — $400 OFF $6000+
• AH630 — $630 OFF $9000+
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Leveraging our massive supply chain, we secure hard-to-find components that other shops can't access. Whether it's a standard upgrade or a custom exotic application, we have the network to get it to your door.
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Direct Consultation:
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To qualify for our Fitment Guarantee, please email your vehicle’s Year, Make, Model, and any existing modifications to:
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Our experts will review your specifications and provide written confirmation for your build.
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Secure Shipping:
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We offer FREE Ground Shipping within the 48 contiguous United States. Most in-stock orders process within 48 hours. For your security, high-value performance parts require a signature upon delivery to ensure they reach you safely.
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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