The 140846 BORLA? Climber system for the Wrangler JL is designed with high ground clearance in mind. Each system is built from premium T-304 stainless steel giving you the absolute best in performance and durability and is a direct bolt on designed specifically for the 3.6L engine. Ultra-smooth mandrel bends ensure maximum flow & power, and precision Computer Numerical Control (CNC) manufacturing ensures an accurate Touring Cat-Back? Exhaust System 2018-2020 Jeep Wrangler JL 3.6L V6 Automatic/ Manual Transmission 4 Wheel Drive 2 Door. Does NOT Fit eTorque Mild Hybrid System And Full-Time 4 Wheel Drive. Climber System. 2018-2020 Jeep Wrangler JL 3.6L V6 Automatic/ Manual Transmission 4 Wheel Drive 2 Door. Does NOT Fit eTorque Mild Hybrid System And Full-Time 4 Wheel Drive. Climber System.