Proti Rear Muffler Bolt Kit for the BMW HP4 (2011-2014) Color:Titanium Polyurethane expands once compressed which

Polyurethane expands once compressed which in turn provides zero slop when under torque while also offering high durability

High precision machining with the objective to improve sliding

• Fork cartridge cylinder D

• Spring in Cr-Mb alloy Steel

T-20 Hex Tool

Proti Rear Muffler Bolt Kit for the BMW HP4 (2011-2014) Color:Titanium Polyurethane expands once compressed whichWelcome to PROTI. The absolute stongest Fully Forged 64 Titanium Bolt for racing. PROTI Fully Forged 64Ti Bolts are the result of a unique hot and cold forging technique which produces a tensile strength of 10. 9. Competitors' Titanium bolts are much weaker with a tensile strength of only Grade 7 8, using a half forged process where the socket is CNC machined instead of the entire piece, or fully CNC machined altogether both methods exposing material