That was the very reason I didn't want to go further than the 904. A properly set up 904 is a MAJOR difference from a 790 or 865 with all the normal mods. There is a huge torque difference (66 ft. lbs. @ 3400 on dyno) making it like you definitely put a larger engine in the bike.
If I ever feel like that's not enough, I'll go with a whole bigger bike. I've had my 904 for almost a year and a half and still can't believe the difference. It cost me a total of $1250. including parts, labor, dyno runs and tuning. I'll say it again, no better bang for the buck. The fact that it is every bit as reliable as stock should make it a no brainer.
