BMW F & G Chassis B46 Downpipe 220 230 320 330 420 430 730

from $219.00

Upgrade from the stock B46 downpipe to the MAD B46 catless downpipe for maximum airflow, power, and sound

The MAD BMW B46 catless downpipe is the perfect upgrade for unlocking the full potential of your turbocharged engine. By removing the restrictive factory catalytic converter, this downpipe allows your turbo to spool faster and more efficiently, giving you better throttle response and more power across the rev range. You’ll also notice a deeper, more aggressive exhaust tone.

On a tuned BMW B46 with the stock turbo, you can expect gains of up to 30 horsepower, with even more potential on upgraded turbo setups.

The built-in flex section helps reduce stress on the system by absorbing vibration and movement from the engine and heat cycles, making it a reliable and long-term upgrade.

This downpipe is designed specifically for U.S. B46 models and is not compatible with vehicles equipped with OPF.

Features

Compatible with both right-hand drive and left-hand drive vehicles
Smooth mandrel bends for maximum flow and zero drone
Up to 30HP gain on stock turbos, more with upgraded setups
Flex section for added durability and vibration absorption
Lifetime warranty on fitment and defects
90-day return period
Ships within 1 to 2 business days
Precision fitment for an easy install

Fitment

2016 and up BMW 120i and 125i
2016 and up BMW 220i and 230i
2016 and up BMW 320i, 330e, 330i (F chassis and G chassis)
2016 and up BMW 420i and 430i
2020+ 2.0 Toyota Supra

Note:

U.S. model fitment only (B46 engines)
Not compatible with vehicles equipped with OPF

SKU: MAD-131

Disclaimer:
This product is intended for off-road or racing use only. It is not certified for use on public roads and may not comply with local emissions regulations. Please check your local laws before installation.

Material:

Quantity:

Upgrade from the stock B46 downpipe to the MAD B46 catless downpipe for maximum airflow, power, and sound

On a tuned BMW B46 with the stock turbo, you can expect gains of up to 30 horsepower, with even more potential on upgraded turbo setups.

The built-in flex section helps reduce stress on the system by absorbing vibration and movement from the engine and heat cycles, making it a reliable and long-term upgrade.

This downpipe is designed specifically for U.S. B46 models and is not compatible with vehicles equipped with OPF.

Features

Compatible with both right-hand drive and left-hand drive vehicles
Smooth mandrel bends for maximum flow and zero drone
Up to 30HP gain on stock turbos, more with upgraded setups
Flex section for added durability and vibration absorption
Lifetime warranty on fitment and defects
90-day return period
Ships within 1 to 2 business days
Precision fitment for an easy install

Fitment

2016 and up BMW 120i and 125i
2016 and up BMW 220i and 230i
2016 and up BMW 320i, 330e, 330i (F chassis and G chassis)
2016 and up BMW 420i and 430i
2020+ 2.0 Toyota Supra

Note:

U.S. model fitment only (B46 engines)
Not compatible with vehicles equipped with OPF

SKU: MAD-131

Note:

U.S. model fitment only (B46 engines)
Not compatible with vehicles equipped with OPF

SKU: MAD-132

Emissions Disclaimer:
This product is not legal for sale or use on pollution-controlled vehicles operated on public roads, highways, or streets. It is intended for off-road, race, or closed-course competition use only, where such modifications are permitted.

By purchasing this product, you acknowledge and agree that:

You are responsible for compliance with all applicable emissions laws and regulations.
MAD and its affiliates disclaim any liability for improper or unlawful use of this product.
Use of this part on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws.

Please check your local laws before purchase and installation.