I ride a 08 XR650L that I bought new in june of 08, The first thing I notice was at times it felt like I was riding a BBQ grill instead of a bike, I search the web to find how hot was to hot, some said 275 deg, some said 300 deg, all agree change the oil ofen. Bought oil temp gauge, and it was common for me to see 275 and couple of times 300, this can't be good, Its not!!! Spent alot of time looking for options, seen the XR400 cooler being put on the bikes, looks good, and for the folks that took the time and effort had made it look like a factory install, But at a big cost $$$, Seen the automotive style trans cooler being put on, Cheaper thats good, but I ride my bike out in the middle of nowhere and alot of times by myself and those type cooler are fragile. I got to talking to several people and they gave me alot to think about, First you can over do it with a cooler design, never letting the oil temp warm up to a good temp, 210-220 range, the cooler needs to be rock solid, and it needs to work. Having access to machines to play with my ideas and on the 3rd try we came up with a solid billet alumimun T6061 that just flat works. Posted a picture of my bike last summer and several guys seen it and ask me to make them one, they all love it. I,m am seeing temps 30-50 degrees cooler, and it works the best off road. The highest temp I have seen with the cooler is 250 degrees and that was out on the super slab for a 40 mile 80mph run. I,m offering them 3 ways Cooler with angled 1/4" ntp fittings,,,,,,, you plumb the rest $200.00+shipping Complete cooler with push on style hose ready to go on the bike $230.00+ shipping All blinged out, same complete cooler with stainless braid over the hoses and pretty hose clamps $275.00+ shipping email@example.com I have a PDF file of the install I can send anybody that wants to see how detailed it is to put it on the bike, Just pm me with your regular e-mail address.