Help where is the best place to buy some good injector tips. That are new and extrude honed, I have just had my second injector tip crack and break going down the road. They are Hypermax stage II injectors and they work great other than this, It sucks being out on the highway and traveling and have this happen. What tips are the best for all around performance on stage IIs. And can you put tips on without completely taking the injector apart?????