742021 Fits 2007 Thru 2013 Sportster 2008 Thru 2013 Xr 1200 2001 Th

The Twin Tuner II from Daytona Twin Tec is a versatile controller that manages both fuel injection and ignition timing, making it perfect for bikes with high-compression heads, performance cams, or free-flowing exhausts. It allows you to add up to 30% fuel or pull back 20%, while also offering the ability to retard spark timing by up to 10 degrees to eliminate annoying spark knock. The unit is incredibly compact and features a simple pushbutton interface with a daylight-readable LED. It is designed for an easy plug-in installation on Dyna, Softail, Sportster, and Touring models. You can even use existing Power Commander maps or pair it with a Twin Scan II+ for precise, dyno-free auto-tuning based on real-world riding data.