BMW N63/N63TU Catless Downpipe For 550i, 650i, 750i, Alpina B6 B7 - ARM Motorsports Add CEL Delete Kit:Yes Our design targets the removal

Our design targets the removal of the need to send your fuel pump assembly in for modification

As many of you know the BMW motors can be very picky about how much ethanol you run to achieve peak performance but not run lean

This product will still allow the intake to remain a closed system

but could reduce what they otherwise collect

Clean the filter every 20

BMW N63/N63TU Catless Downpipe For 550i, 650i, 750i, Alpina B6 B7 - ARM Motorsports Add CEL Delete Kit:Yes Our design targets the removalHIGHLIGHTS Gain up to +43whp 48wtq Improved Turbo Spool Enhanced Exhaust Note Fully Reversible PROFILE ARM Motorsports' new N63 N63TU downpipes for the 4. 4L V8 Twin Turbo powered 550i allow you to take your N63 N63TU engine to the next level. Made with full 304 Stainless Steel and 3" construction these downpipes provide a significant increase in power and torque over the OEM catted downpipes. In addition to the massive power gains, these downpipes