Fast and consistent response times

Clean and resurface the engine block and cylinder head to ensure they are flat and free from debris

Rated for up to 9500 RPM

CNC Coolant Pipe / Hardware

Aircraft-grade forged aluminum offers superior heat resistance and strength

BMW S14 400 Series NA Power Pack SUP-HPVK Fast and consistent response timesThe 400 Series Power Pack is the one click forged internals kit for naturally aspirated BMW S14B23 engines, delivering modern performance for this legendary engine. Designed for enthusiasts aiming for 400HP, this kit is a major upgrade over aging OEM components, offering improved strength, durability, and reliability. Featuring Arias Forged Pistons (94mm bore, 11: 1 compression) and SP Components Connecting Rods, this kit is built for high revving,