hi evryone will i see any gain in horsepower with this kit i may need to bore on this years rebuild http://cgi.ebay.com/ebaymotors/YAMAHA-BANSHEE-YFZ350-TOP-END-PISTON-REBUILD-KIT-50-mm_W0QQcmdZViewItemQQ_trksidZp3286Q2ec0Q2em14QQhashZitem4a9abc62feQQitemZ320423617278QQptZMotorsQ5fATVQ5fPartsQ5fAccessories