OS Giken SuperLock LSD, BMW E31 7475 A CFD-designed lower plenum with

A CFD-designed lower plenum with an integrated flow diverter ensures even distribution across all cylinders for optimal fueling and safe power gains

the stock intake system ends up adding more restriction to your finely tuned sports car

Boost pressure: 8-9 PSI

if ET is bigger

beginning when the 5150 Team receives your head

OS Giken SuperLock LSD, BMW E31 7475 A CFD-designed lower plenum withOS Giken SuperLock LSD for BMW E31 840i 840Ci 850Ci 850CSi Precision Limited Slip Differential Give your BMW E31 the performance it deserves with the OS Giken SuperLock LSD. Engineered for BMW 840i, 840Ci, 850Ci, and 850CSi models, this advanced limited slip differential enhances traction, cornering control, and overall drivabilityon both street and track. Unlike typical LSD units, OS Gikens patented pressure ring and spline through side gear design