Hennessey tunes the 2009 Chevrolet Corvette ZR1 to 755-hp
Hennessey Motorsports thought that the 638-hp 2009 Chevrolet Corvette ZR1 was not quick enough, so they decided that they will offer a couple of performance upgrades.
Their upgrades take the 2009 ZR1 from 638-hp to 755-hp.
The first package is called the ZR700, it adds a supercharged pulley and blower snout upgrade, an intercooler system upgrade, a K&N air...
by Dean at January 30th, 2009 at 03:01 pm