I have an 07 GTX 155 and its time to replace the wear ring and impeller, I'm looking to see if anyone has any recommendations of an aftermarket impeller vs. the stock one. Ski is used for mostly general riding and pulling a tube with kids on it every now and then, mostly looking to pick up a little top end if anything, I will be ordering online because my local dealer must be trying to put another kid threw college with the price of 375 for the oem impeller so a place to order from would be good to if there is a preferred one, Thanks in advance.