N55 Catted Downpipe - F3X - 4" EWG Mercedes Benz Electrical hardware is included for

Electrical hardware is included for the fuel pump(s) and OEM level sender

The ARM S58 Intake utilizes extra-large 3

nothing to assemble

1:1 pressure regulator

Sedan & Wagon: 1999-2005

N55 Catted Downpipe - F3X - 4" EWG Mercedes Benz Electrical hardware is included forHIGHLIGHTS Gain up to 23whp 29wtq Faster Turbo Spool Improved Exhaust Sound Upgrade to Stage 2+ Tuning SS304 Stainless Steel PROFILE An F30 N55 Downpipe is regarded as the best hardware upgrade to get the most power from your N55 powered F3X BMW. The ARM N55 Catted Downpipe offers the same benefits as the catless option with added benefit of reduced exhaust odor. The stock N55 downpipe comes from the factory with a catalyst that severely restricts