S58 CATTED DOWNPIPES - G80 M3 G82/G83 M430 Day Money Back Guarantee IN STOCK HIGHLIGHTS Increase Power and Torque Faster Turbo Spool Exotic Exhaust Sound SS304 Stainless Steel PROFILE The ARM S58 Catted Downpipes increase power and torque on your S58 powered BMW while unleashing exotic sounds from your tailpipes. The ARM S58 Catted Downpipes are one of, if not the best all around hardware upgrades for the G8X platform. The ARM S58 Catted Downpipes improve throttle response throughout the

making the stock inlet pipe the lowest common denominator in the intake system

It then rapidly transitions to the 6" OD high-flow catted section

oil and transmission fluid

4L BMW F10 550i xDrive N63/TU 4

but even pre-2020 vehicles can have their DME's locked via a software update performed by BMW

4L BMW G14 M850i / xDrive N63B 4

the ARM Audi A3 Downpipe is designed to fit your Audi A3 perfectly

your downpipes will have our resonators installed to help tune the tone of your S58 for a strong and aggressive sound while maximizing exhaust flow

0T Intake setup

N63R/TU2/TU3 4

• Perfect Fitment

If you are installing the ARM Test Pipe on a stock or stage 1 ECU tune