1999-2007 Sierra / 1999-2007 Silverado SS Catback Exhaust (BOR140014) watchlist 5" rear spring lift maintains

5" rear spring lift maintains balanced geometry

high-quality alternative to a traditional suspension lift

Why choose between comfort and height when you can have both in one fun package

Front Upper Control Arms (UCA) are required for this application (recommended PN: 67-2548 or 67-29640)

This allows your engine to inhale a larger amount of air than the factory air filter and air intake assembly

1999-2007 Sierra / 1999-2007 Silverado SS Catback Exhaust (BOR140014) watchlist 5" rear spring lift maintainsThe 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