Fi2000 Open Loop Tuning Module Yamaha Roadstar 1600 / 1700 Just about every bike can benefit with the install of the Fi2000. Expect better throttle response, minimal backfiring, and smoother rideability all around are just a few of the benefits. Allowing for your bikes engine to have the correct air and fuel ratio when adding exhaust and an air intake will have your bike performing to its full potential, run cooler, and be a much more enjoyable ride over all. Features No confusing computer downloads to install No cutting, tapping, or splicing needed Pre-configured from the factory for specific models Detailed instructions included Waterproof circuit board