Borla 18-20 Jeep Wrangler JLU 3.6L V6 Climber Turn Down Exit Cat-Back ExhaustBorla 18 20 Jeep Wrangler JLU 3. 6L V6 Climber Turn Down Exit Cat Back Exhaust EXCEPT vehicles with 2. 72: 1 Select Trac Full Time 4WD and eTorque mild hybrid system. The BORLA(r) high clearance Climber system is designed with ground clearance in mind and comes in two sound levels. The milder Touring sound level, PN 140828 and the more aggressive S Type sound level , PN 140829. BORLA(r)'s advanced muffler technology delivers great sound outside the