My Lt1, I picked it up summer of 04' after working for two years to afford it. There go's college money. Ha ha. Came stock, 350 c.i.d 5.7 Liter Lt1 corvette V8, running 275 horsepower @ 5000 rpm, 325 torque @ 2400 rpm. It came with the optional 1LE competition package one of only 135 cars made that year. I tossed on a gen 2 K&N cold air intake, pulled the ECU, and let it flow better with 3.5 in. flowmaster American Thunder exhaust with dual 3 in outlets. hooked from cat back Just put on some March 25% under-drive Alt./crank-harmonic balancer pulleys. Must say, noticed a change in the power-band, and car idles around 200 rpms less. Anyways, a new fuel pump, fuel pressure regulator, fuel pressure gauge, new spark plugs and 8mm plug wires, and new O2 senors are all upgrades for the 06` driving season. Should be fun