Borla 14 Silv/Sierra C/B Exh ATAK 1500 5.3L V8 AT/MT 2&4WD Ext Cab (78.7) Crew Cab(69.3) 143.5 WBThe BORLA 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 BORLA exhaust note has become the quintessentioal soundtrack of high performance motoring. And like all good automotive designs there is function behing the form. As any driving enthusiast knows, the