90” OD stainless tubular manifold T4 twin scroll

CP-Carrillo Forged Pistons HD Wrist Pins

A log should be kept on the original non-torqued length of each bolt

OEM & CDI compatibility

BMW N55 Complete Engine Build Kit by 5150 AutoSport Connecting Rods:CP-Carrillo 90” OD stainless tubular manifoldHave you been considering building your N55 powered BMW but weren't sure where to start? Unsure of what components to pair for the best possible power and reliability combination? We receive inquiries daily from N55 owners interested in building their engine but unsure where to start. The 5150 AutoSport Complete Engine Build Kit features every component you need to fortify your BMW N55 internally and prepare your engine for high power, high boost