Bought for my 2010 ssr110 pit bike due to the good reviews I have read elsewhere online. cam instalation was a breeze and it is noticeably different when in a side by side comparision. the lobes on the tb411 are much bigger. after cranking i noticed a nice lug lug lug sound really noticing the difference in sound at idle but requires rejeting. it seems to be dead thirsty for more gas due to all the air that is being moved with the cam from opening the intake and exhaust valves. i will rejet soon! otherwise this is a somewhat easy installation and is more bang for your buck than any cdi box or high flow air filter! I'm impressed with the overall performance of the cam considering the price! I recomend to all whose seek power for cheap!