I swapped in a 6 speed and also did a Good-win racing carbon clutch/flywheel kit(much lighter). The clutch kit does let the engine rev up and down much quicker. I had an 00 SE back in 2000 and I kept thinking this car just didn't run as well, the swap really took car of things. The car really zings through the gears now with the 4.30's and 6 speed.