Part number:BMW-215-135H

★ 100% premium AISI4340 forged steel

★ Strict forge and heat treatment processed forgings, hardness of 34-38 HRC

★ Aluminium/Silicon/Bronz alloy bushing

★ 3D software re-designed critical C-bore area, special CNC machining ensure smooth connection and free of sharp edge, significantly improved strength

★ Accurate sized and edge chamfered dowel sleeve for easy and accurate re-assembling.

★ Sunnen hone solution for all big bore and pin bore finishing

Part number:BMW-214-141.5H

★ The highest quality forged AISI 4340 steel (En24). Hardness HRC 34-38

★ All forgings are degassed and X-rayed

★ Designed in H-Beam technology

★ Balanced to within a gram
★ Uniform machine peened, magnaflux-tested

★ Heat treatment, sliding and honing to achieve high strength and maximum accuracy

Part number:BMW-213-142.5H

★ High-Tensile 4340 Forged Material for Durability

★ Silicon Bronze bushing

★ Shot Peening for improved fatigue life

★ Balanced to within a gram
★ Uniform machine peened, magnaflux-tested

★ Balancing for weight matched sets of ± 1gram

Part number:BMW-209-139H

★ Made from forged steel

★ Fully machined and balanced to within a gram

★ High Hp/Boost applications

★ Built from the finest raw materials 4340 high tensile steel

★ Dowel sleeves for perfect fit and accurate re - assembling