The most important features of these Fuel Injection controllers are:
•Low cost
•Increases horsepower
• Improves throttle response
•Eliminates spark knock
•Easy plug-in installation and setup
•Very compact size-only 4" (10cm) long, 2" (5cm) wide and 1/2" (1.2cm) high
•Can use Dynojet Power Commander maps you have created
•Compatible with Twin Scan II+ Tuning Aid
•Also allows ignition tuning

The Twin Tuner II allows you to easily adjust your fuel injection and, as one of the very few ignition tuners on the market, adjust ignition to match the requirements of performance parts including high compression pistons and heads, camshafts, free flowing exhausts, and low restriction air filters. You can add or subtract fuel (up to +30% or down to -20%) and retard spark timing up to 10 degrees. The user interface consists of up/down pushbuttons and a bright daylight readable LED display to select and change the fuel trim and spark retard in the RPM and throttle position ranges required by most applications. The Twin Tuner II also has an advanced mode, where you can use the optional USB Interface and PC Link Tuner software to make precise fuel and spark retard adjustments. The PC Link Tuner software uses the same RPM rows and throttle position columns as the Dynojet Power Commander. If you have created Dynojet Power Commander files for your applications, you can enter the same values into the Twin Tuner II. You can even make independent adjustments to the front and rear cylinders. The Twin Tuner II works great in combination with the Daytona Sensors Twin Scan II+ tuning aid. You don't need a dyno for precise tuning. All you have to do is install the Twin Scan II+ and ride the bike around for some time. You can then copy the air/fuel ratio corrections calculated by the Twin Scan II+ into the PC Link Tuner software. Installation takes only 10-15 minutes and is very easy, with no splicing, cutting, crimping, or bulky interconnections and requires no special tools. Comes complete with easy to follow installation instructions.