Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

MAD B58 4.5" Catted Downpipe W/ Bracket BMW F, G Chassis & SupraIntroducing the Mad Catted B58 Downpipe, the perfect upgrade for BMW enthusiasts looking to enhance their vehicle's performance and exhaust sound. Crafted from premium quality 304 stainless steel, this downpipe is built to withstand extreme temperatures and harsh driving conditions. The smooth transition of our piping design ensures maximum exhaust flow, which results in increased horsepower, torque, and throttle response. The Mad Catted B58 Downpipe

It includes all necessary hardware and comes with a built-in drain plug for easy fluid changes

Upgrading the diameter of the vacuum line running to the BOV ensures proper BOV function

The ARM S55 J Pipe is constructed of T6061 aluminum for a durable replacement that will hold up to even the most demanding builds

Aggressive

It was just a matter of time before LS based engines found their way into the C3 chassis

Upgrade Your BMW M2/M3/M4 with MAD's High-Performance Front Mount Intakes

Our 4" resonators are installed in the perfect location to enhance the sound of your S55 without compromising the precise fitment of our F80 M3 downpipes

the ARM S55 Intake system is your answer

This is a must-have if you're going to get all you can out of your VW or Audi 2

These decals are meant to be placed on top of the existing decal

The flange on the midpipe side of the ARM S58 Crossover Pipe is designed to accommodate the midpipe gasket perfectly

This is shown in our IAT testing results below

Exchange/Return Notes