LOGGING SPEED

providing peace of mind for drivers pushing their vehicles to the limit

Direct-fit camshaft set for BMW N55 engines

- If the under-car regulator is not used

please note 6-8 week lead time

Cylinder Head O-Ringing Service, 8-Cylinder BMW Engines M40B18 LOGGING SPEED5150 AutoSport Cylinder Head O Ring Installation Service for 8 Cylinder BMW Engines O ringing an engine cylinder head for high performance, high boost turbo applications provides several mechanical advantages. These advantages primarily focus on improving the engine's sealing capabilities and durability under extreme conditions. Price includes head resurfacing and wash. Key mechanical benefits of O ringing an engine cylinder head: 1. Superior Sealing: