Hello,I'm new to this group and I'm also new to hayabusa ownership. That said I bought a 05 busa bone stock with 1200 miles . Rode it once and decided to make a few mods. I bought a 16 tooth front sprocket and a full devil exhaust with a werkes gp can off of local494busa a very nice guy on this forum. That said the exhaust doesn't have a Bung for an o2 sensor. What's everyone's take on this local said just ziptie the sensor and go riding , although I don't think he d steer me wrong I don't want to foul up my new low miliage beast. Thanks guys.