MAD B58 4.5" Catted Downpipe W/ Bracket BMW F, G Chassis & Supra

Upgrade your stock B58 downpipe to the MAD B58 4.5" Catted Downpipe and unleash the full potential of your BMW F, G Chassis, or Toyota Supra. Designed to maximize airflow, power, and sound, this downpipe is the perfect performance upgrade for your vehicle.

By replacing your stock catalytic converters with the MAD B58 catted downpipe, you'll eliminate the backpressure that restricts your turbo's performance. This means faster spooling and the ability to achieve maximum power. Plus, you'll notice a significant improvement in the sound of your car, giving it a more aggressive and sporty tone.

With a tuned BMW or Toyota Supra B58 with the stock turbo, you can expect up to a 30HP increase. And if you've upgraded your turbo, the performance gains can be even more impressive. This downpipe is engineered with smooth bends to ensure maximum airflow without any annoying drone, providing a seamless and enjoyable driving experience.

Not only does the MAD B58 downpipe deliver exceptional performance, but it also offers practical benefits. The flex pipe section reduces stress and unwanted vibrations caused by heat and engine movement, ensuring long-lasting durability and reliability.

Rest assured, this downpipe is compatible with both right-hand drive and left-hand drive vehicles, making it suitable for a wide range of BMW F, G Chassis, and Toyota Supra models. Additionally, MAD stands behind the quality of their product with a lifetime warranty on defects and fitment, giving you peace of mind.

Ordering is hassle-free, with all orders shipping in 1-2 business days. If for any reason you're not satisfied, we offer a 90-day return period, ensuring your complete satisfaction.

• Compatible with right-hand drive and left-hand drive vehicles
• Smooth bends for maximum airflow without any drone
• Up to 30HP increase on the stock turbos, even more on upgraded turbos
• Lifetime warranty on defects and fitment
• 90 day return period
• All orders ship in 1-2 business days
• Spot on fitment
• Flex section
• 200 CEL high flow cats

Upgrade your BMW or Toyota Supra with the MAD B58 4.5" Catted Downpipe and experience the ultimate combination of performance, quality, and convenience. Unleash the true potential of your vehicle today!

Fitment:

• 2015+ BMW M240i & Xdrive

• 2016-2019 BMW 340i & Xdrive

• 2020+2024 BMW M340i & Xdrive * Does not fit 2025 *

• 2016+ BMW 440i & Xdrive

• 2016+ BMW 540i & Xdrive

• 2016+ BMW 740i & Xdrive

• 2017-2024 X3 M40

• 2017-2024 X4 M40

• 2019+ G05 BMW X5 40i & xDrive

• 2019+ G07 BMW X7 40i & xDrive

• 2019+ G29 BMW Z4 M40i

• 2019+ 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 emissions regulations. Additionally, it does not prevent the illumination of the Check Engine Light (CEL). Please consult your local laws and regulations before installation.