The ultra-strong WERKSracing EFR Turbo Locking Tab Kit is now available! Designed to properly retain the Borg Warner EFR super cores to their respective turbine housing, these ultra-strong locking tabs feature dual prongs and are water jet cut from 5/16" 304 stainless steel and keep the EFR cartridges in place better than any other tabs! Comes complete with 4 tabs and 4 M8 bolts.