I'm in the same boat as everyone else here with my 2010 FLHXSE......and have already installed the Fullsac 2" CVO baffle cores. Very happy with the product & sound of these baffles, but looking for more performance & less heat!! Upon researching I've found that the Jackpot Muffler Co. has designed a 2 1/2 Stainless Steel Header Pipe for our bikes with the correct O2 sensor bungs & is a direct bolt-on replacement with "NO" Cat. Convertor. Available for shipment next month "October", and appears very reasonably priced too. Check this out at jackpotmufflers.com , I for one am awaiting their release next month & will be replacing my stock headpipe with this one from Jackpot Mufflers. Good luck to all, and keep your posts coming. We all want more performance & less heat!