AST Rollcages V2 Removable Bolt-In Rear Roll Cage for BMW M4 F82 59°North However unlike the ARP 2000

However unlike the ARP 2000 and 8740 the material which the L19 is made from is not rust proof and requires certain precautions for use

0L (83-03)Designed to withstand high RPM temperatures and load these high strength bearings are manufactured by ACL from 3 layers of hardened steel copper and nickel

L19 : made from ""premium"" steel which has received numerous treatments offering a more substantial resistance compared to the ARP 2000 (260

ACL Race Main Bearings Nissan GT-R R35 (VR38DETT)Designed to withstand high RPM temperatures and load these high strength bearings are manufactured by ACL from 3 layers of hardened steel copper and nickel

AST Rollcages V2 Removable Bolt-In Rear Roll Cage for BMW M4 F82 59°North However unlike the ARP 2000AST Roll Cages SpecificationsAttention : AST roll cages designed and built according to FIA Appendix J may not be approved depending on the year of preparation of your car. Indeed the safety requirements are often revised in Appendix J by the FIA. Check with your Federation Sporting Organisation for the minimum safety requirements specific to your vehicle version engine and type of event and or championship to be contested. AST roll cages have 4 to 10