Last night my resized speed fully awoke.... I only pitted one time in the 20 min main... that's 10 mins of run time on a resized piston and sleeve... Everyone else pitted at 7 and 8 min marks.... I'm really pleased with the service I received.... She runs like new again.... I'm pretty sure the racers at my track will use your services after they seen the performance of my once tired mule that was transformed back to a running stallion thanks to rcrenew.... Thanks....