Borla 04-09 VW GTI Base SS Catback ExhaustBorla 04 09 VW GTI Base SS Catback Exhaust 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 automotive designs there is function behing