Borla 81-86 Jeep CJ-7 4.2L AT/MT 4WD Cat-Back 2in Single Round Angle Cut Intrcld Rr 2.5in Rndx6.5inBorla 81 86 Jeep CJ 7 4. 2L AT MT 4WD Cat Back 2in Single Round Angle Cut Intrcld Rr 2. 5in Rndx6. 5in The BORLAA*A? sound of power. Its been described as asonic shot of adrenaline. An intoxicating concert ofsteel, gears and combustion that echoes from thespeedways, deserts and highways of the world. The sound of more victory laps than any otherbrand, the BORLAA*A? exhaust note has become the quintessentioal soundtrack of high performance motoring.