BMW B46 Valve Springs by SuperTech Seat Pressure:84 lbs which can be adjusted separately

which can be adjusted separately in the low-speed and high-speed forces

S52 Engines | 80lb Seat Pressure

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

and high-performance street builds

BMW B46 Valve Springs by SuperTech Seat Pressure:84 lbs which can be adjusted separatelySupertech 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