Hopefully, the tune is good, as it's the only thing that could even lightly make up for the terrible customer service. The FZ1 tune from Ivan's Performance Products costs a very pricey $350, yet as mentioned on a phone call with the shop, the tune takes a "one-size-fits-all" approach that is applied to all FZ1's, no matter the modification. This means that even if you don't choose to modify the airbox, the tune will just end up just running rich instead of actually being adjusted properly to maintain the longevity of your bike. It seems that the shops only goal seems is focused around sending everyone the same tune over and over again to make $350, even though the tune is just uploaded to your ECU in minutes without any level of customization. Overall, I'd recommend looking elsewhere prior to having any motorcycle tuned at Ivan's Performance Products, as the tune won't be tailored to your specific motorcycle. Based on my experience, it feels like if anything goes wrong, it won't matter, as the shop already has your money, so they don't have to take care of you. According to previous reviews, it seems that the poor customer issue has sadly been a problem for quite some time, but the business has been propped up on old forum threads instead of recent accounts.