MAD BMW B58 2025+ Gen 3 M340 Fat Boy 5.0" Downpipe Catless
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:
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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
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Description
Description
Upgrade your 2025+ BMW M340 with the MAD BMW B58 Gen 3 "Fat Boy" 5.0" Catless Downpipe—the ultimate performance upgrade designed to unleash the full potential of your engine. Crafted from premium-quality 304 stainless steel, this larger-diameter 5.0-inch downpipe offers superior airflow, delivering enhanced horsepower, quicker turbo response, and noticeable torque gains.
The increased diameter of the "Fat Boy" downpipe sets it apart from our standard catless models by providing a deeper, richer, and significantly more aggressive exhaust tone. Precision-engineered welds and exceptional craftsmanship ensure perfect fitment, durability, and peak performance for enthusiasts demanding maximum results.
Transform your BMW M340's driving experience by choosing MAD's top-tier downpipe, designed specifically for drivers seeking ultimate airflow and a sound profile that commands attention.
Features:
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Premium 304 stainless steel for superior durability
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Expanded 5.0-inch diameter for unmatched airflow and performance
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Deeper, richer, and more aggressive exhaust tone
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Improved horsepower and torque compared to standard catless downpipes
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Precision craftsmanship and perfect bolt-on fitment
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Ideal for high-performance builds and enthusiasts seeking maximum results
Payment & Security
Payment methods
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