MAD BMW F & G Chassis 5" B58 Catted Downpipe M240 340 M340 440 M440 540 W/ No CEL Guarantee & Bracket
Shipping & Returns
Shipping & Returns
How is shipping calculated?
Shipping cost is based on weight and size. Just add products to your cart and use the shipping estimate tool before checkout to see an accurate shipping cost to your address!
What is your return policy?
We do accept returns. Please email us at info@broxtuning.ca to submit your request. Items sent to us without submitting a request will not be accepted.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. Customer service is at the top of our values here at Brox Tuning and we try our best to make the return process painless for our customers. If you need more info please click here for our detailed return policy.
When will my order ship?
Once an order is placed, if the item is in stock we will have it shipped out within 1 business day. Out of stock items usually ship within 1-2 weeks. Please email us if you have any questions regarding inventory at sales@broxtuning.ca.
Do you ship worldwide?
We only ship to Canada & USA.
Price Match
Price Match
If you're shopping for parts and want to make sure you get the best price before you order, give Brox Tuning the opportunity to earn your business. Call us at (416) 798-BROX or email us at sales@broxtuning.ca with the required info below:
- Link to competitor's site:
Local Pick Up
Local Pick Up
If you are local to our physical location you have the ability to choose the "local pick up" option at checkout! This means you can come and get your items once they are available for pick up avoiding shipping costs. In stock items are usually ready within 1-3 hours. Out of stock items will need 1-2 weeks. Get in touch with us if you have questions about stock levels at sales@broxtuning.ca or call us at (416) 798-BROX
Ask about inventory:
Description
Description
Upgrade your stock B58 downpipe to the MAD B58 Catted Downpipe for more power, better sound, and guaranteed reliability without triggering a check engine light.
The MAD Catted B58 Downpipe is the ideal performance upgrade for BMW owners who want more out of their car without the hassle. It's made from premium 304 stainless steel and built to handle extreme heat and tough driving conditions.
The smooth piping design allows for maximum exhaust flow, which translates into more horsepower, better torque, and sharper throttle response. The 300-cell high-flow catalytic converter gives you noticeable gains and a more aggressive sound, all while keeping the check engine light off.
Installation is simple with a direct bolt-on fit to the stock exhaust system. No cutting or welding needed. It's also fully compatible with most aftermarket exhaust setups, giving you the flexibility to build the setup you want.
No check engine light guarantee
If you get a CEL related to the catalytic converter, MAD will replace the downpipe for free.
Warranty coverage
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1-year warranty on the catalytic converter
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Lifetime warranty on the downpipe for defects and fitment
Race use only
Features
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No CEL guarantee or it's replaced free
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Compatible with right-hand drive and left-hand drive vehicles
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Smooth bends for maximum airflow without drone
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Gains up to 30 horsepower on stock turbos and even more with upgraded ones
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Lifetime warranty on the downpipe
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1-year warranty on the catalytic converter
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90-day return policy
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Ships in 1 to 2 business days
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Direct bolt-on fitment
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Flex section for durability
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300 cell high-flow catalytic converter
Fitment
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2015 and up BMW M240i and XDrive
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2016 to 2019 BMW 340i and XDrive
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2020 to 2024 BMW M340i and XDrive (does not fit 2025+)
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2016 and up BMW 440i and XDrive
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2016 and up BMW 540i and XDrive
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2016 and up BMW 740i and XDrive
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2017 to 2020 BMW X3 M40
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2017 to 2020 BMW X4 M40
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2019 and up G05 BMW X5 40i and XDrive
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2019 and up G07 BMW X7 40i and XDrive
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2019 and up G29 BMW Z4 M40i
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2019 and up Toyota Supra 3.0L
Disclaimer
For race use only. This product is not certified for use on public roads and may not comply with local regulations. Always check your local laws before installing.
Payment & Security
Payment methods
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