ltz400

[buckshot400]

i have a 03ltz stock bore,fmf exhaust,rejetted,air box lid off.I am wanting to know whats the cheapist way to get more mid out of the motor?I also have regeared and installed a rev box

[cataway]

cams will help alot so will an FCR carb with a 400ex boot

just an ex boot could get you near 3hp

[nyates450]

DRZe 400 base gasket.
Ignition box with a different timing curve. (dynatech worked great)

[twincat800]

For sure the 400ex intake, cheap good power with a uni filter. And if you wanted to spend some $ the Fcr39 carb from a yfz450

[twincat800]

And similar to what nyates said, get dyna programer and the Drz kit (thin base gasket for more compression, stiffer valve springs, and new cam chain). The kit is kinda needed if you want a better performance programer.