ARB / OME Nitro charger Plus Shock 2018 Jeep Wrangler JL 50mm - Front WHY ARB ARB's Old Man Emu (OME) and BP-51 lines are tuned by ARB engineers in Australia for predictable handling under load — empty, loaded, or towing. BP-51 internal bypass technology delivers premium damping with zero-fade performance over washboard, sand, and rock. FITMENT 2018-2026 Jeep Wrangler JL ⚠ CA Prop 65 Warning