BMW S58 3.5" Fat Boy Downpipes M2 M3 M4 G87 G80 G82 G83

FOR OFF-ROAD USE ONLY

The MAD 3.5" S58 Fat boy is the largest BMW S58 catless downpipe on the market!

Upgrade from the stock S58 downpipes to the MAD 3.5" Fat Boy S58 catless downpipes for maximum airflow, power, and sound!

Upgrade to the MAD BMW 3.5" Fat Boy S58 downpipes to eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipes, your turbos can now spool faster and achieve maximum power. As a bonus, your car will sound a lot nicer as well.

Expect up to a 30HP increase on a tuned BMW S58 with stock turbos, even more on cars with upgraded turbos.

The flex pipe Section will help reduce the stress and unwanted vibration from the downpipes.

Features:

Largest 3.5'' Diameter piping compared to standard 3''

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

Spot on fitment

Flex section

Fitment:

2021+ BMW M3 G80

2021+ BMW M4 G82 G83

2023+ BMW M2 G87

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.