I agree, the Getrag 284 5-speed is the right tranny to look for, but DO NOT change the timing on your cams, chances are high that changing the timing can royally screw up the engine. Only changes for the timing is regular maintenence, other than that stay away from them unless you have extensive knowledge on the quad cams. Its a pain in the A$$ when you change the belts also, but anyways do a cold air intake, E3 sparks and wires, and I believe if you've got the program on your laptop and an OBD II USB adapter you can also fine tune your performance. All together with small mods you should expect ATLEAST a 35-45 hp increase, and you will notice the changes
