For: BK1 2010 - 2012 3.8 AT and MT Description DOES NOT WORK WITH THE VIS VENTED HOOD! +15whp +19wtq mid range without tuning. Even more power with tuning! Comes with all new bolts. This manifold riser extends the length of the intake runners which a more info

15whp & 19wtq mid range without tuning. Even more power with tuning! Comes with all new bolts. This manifold riser extends the length of the intake manifold runners which allows the air flow more time to reach optimal velocity in the mid rpm range wh more info

Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve . We present you the answer to this age old problem, raising the intake manifold more info

Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve . We present you the answer to this age old problem, raising the intake manifold more info