ACL BMW N54/N55/S55 RACE Series Rod Bearing Set Z4 M40i Active Autowerke has been an

Active Autowerke has been an industry leader in engineering high quality BMW performance products for over 39 years

To set off the system to its visual best

Our carbon inlets have a larger volume than the stock inlets by maintaining a larger diameter all the way to the turbos

Further map changes are much faster – only 30 seconds

Designed primarily for track use

ACL BMW N54/N55/S55 RACE Series Rod Bearing Set Z4 M40i Active Autowerke has been anACL BMW N54 N55 S55 RACE Series Standard Size Performance Rod Bearing Set The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings. Designed to withstand higher RPM conditions, ACL Race Series Engine Bearings are available for many of the popular 4, 6 & 8 cylinder applications. KEY FEATURES High strength overlay plate with reduced thickness for improved