S55 FBO KIT30 Day Money Back Guarantee IN STOCK S55 FBO KIT Create a custom FBO Kit for your S55 powered vehicle! Customize your full bolt on kit exactly how you want it for your specific build. Downpipes are a required option for the FBO kit and included with every kit. S55 Downpipes The foundation of the ARM S55 FBO Kit is our S55 Downpipes. The ARM S55 Downpipes are the ultimate solution for improving power, throttle response, and exhaust note on your S55

" blog post to see which version you have

• Fits OEM Underbody Brace

0T Audi A3 8V FWD 2

The ARM 340i Midpipe will allow for perfect fitment

The ARM N63 Midpipes are a full 2

Included in the kit is a Boost-Proof adapter which protects against high boost levels

4L BMW F93 M8 S63 4

Below is a datalog from our project 335xi equipped with upgraded turbos

you will notice an increase in power

The ARM 3

The cold-side hose is also 3” at the intercooler and is maintained all the way to the charge pipe

This is the drivers side N63 downpipe