Howdy y'all, I've been reading the vog since nov08, & wanted to join in the various posts but I'm a computer idiot (web search/e-mail thats it) But I just had to tell y'all about a very cool product that 1-adds hp/tq, 2-cools engine,3-doubles the oil change intervals, 4-extends engine life!!. Six different car/bike mags have run articles/ dyno tests on this product, & have been "blown-away" @ the results. here's a sample: Street chopper mag did a dyno test on a 93c.i. S&S shovelhead (modern technology-not old 70's type motor)=79hp/85tq, after changing oil, & installing a "PUREPOWER" stainless/lifetime oil filter the dyno showed 87hp/96tq with NO adjustments or tuning of any kind, thats 8hp/11tq more than before. It also ran 15% cooler. the guy that invented it is Kelly tidwell, the same guy that founded S.T.D., big bore harley engines. Kelly is an engineer w/ many issued patents and an expert on oil & high performance engines of all types (bikes-cars diesels -aircraft-etc) his website is http://www.gopurepower.com/ . I called him after I read the Street Chopper article and was amazed at what I learned about oil, (which B.T.W. his filter will double your oil change intervals no matter which brand you use. there are other stainless/lifetime oil filters out on the market too,( K&P-SCOTT-ETC) and their all superior to any paper filter. But"purepower's" is the original &the best. So if you want a cooler running, more hp/tq,5K-oil change interval bike that filters out, over 90% more impurties than what your using, check out his website.