BMW B46 Valve Springs by SuperTech Seat Pressure:84 lbs and establish a baseline for

and establish a baseline for implementing performance modifications accurately

Racing or Stock Factory Replacement applications

Includes Spindles with 51 mm Strut Ø

It is only required when you are wanting to change boost settings with a tuning device such as JB4 or Motiv boost box

For higher RPM builds and increased durability

BMW B46 Valve Springs by SuperTech Seat Pressure:84 lbs and establish a baseline forSupertech Valve Springs for the BMW B46 engine are engineered for high performance builds that demand reliable valvetrain control at high RPMs. Whether you're chasing power on the street or building for track duty, these springs are designed to reduce valve float, improve stability, and maintain precise valve operation under extreme conditions. Developed with advanced materials and exacting tolerances, Supertech valve springs offer significantly