Borla 13-16 BMW 335i / 435i Atak Cat back SS 3.0in, 2.25in 3.5in Tip Single RolledBorla 13 16 BMW 335i 435i Atak Cat back SS 3. 0in, 2. 25in 3. 5in Tip Single Rolled 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. And like all good