The big news for 2008 was under the hood: Engine displacement was increased to 6.2 liters (376 cubic inches) via a bore increase. Output was upped to 430 hp (424 lb.-ft. torque) and a new engine designation - LS3 - announced the good news. Credit for the increase went to revised a camshaft / valvetrain, a high flow intake and the use of the Z06's fuel injectors. A new for '08 dual mode exhaust (RPO NPP; $1195) which bypasses the muffler for a very aggressive sound. A similar system has been used on the Z06; the difference being that the Z06 used 3 inch pipes and the LS3 uses 2.5 inch pipes.
The manual transmission shifter, which already worked amazingly well, was refined via shorter shifts. Upgrades in the automatic transmission resulted in quicker shifting. Two colors, Jetstream Blue Metallic Tintcoat and Crystal Red Metallic Tintcoat were added and the Le Mans Blue Metallic and Monterey Red Metallic Tintcoat were discontinued.
There were no changes to the Z06 for 2008.
