I've only driven for a tank and a half worth so far, but mileage is already noticeably improved (and improving).with no change to vehicle performance that I can tell. I made an effort not to change my driving style at all (and had the AC on all day recently) and I'm very excited to see what overall mileage will be. My first tank got about 25 miles over my best by memory. My 2004 Dakota went from 18/19 mpg to 22. Very surprised how well this works so far and will be buying one for my other car soon.
YAMAHA OEM KICKSTAND SIDE KICK STAND 367-27311-02-R4 MY9
Installation is tricky, creates some voids that are tough to get tools into, but once installed works well. I've had to tighten up the bolts I 'can' reach once already due to vibrations.