I have logged 15,000 mile on my daily driver a 2000 busa with a Hahn kit. I have only had one slight problem I had a little oil leak at the turbo due to a bad seal. I do admit, I make it a point to change oil every 3,000 miles and also run full synthetic oil,have replaced the tires 3 times, so cost of turbo bike a little more than a stocker,but in my opinion well worth it.I run 93 octane gas and 10lbs boost good for 265rwhp and pulling red line in 6th with stock gearing. I do not believe you can get any more bang for the buck than with a Turbo. Just be sensible and ride safe.