Daytona Twin Tuner II - 2007-2021 XL & 2001-2011 TC W/ 36 PIN — Harley-Davidson Sportster 1200 Custom, Super Low, Iron 883 (2001-2021)

The Daytona Twin Tuner II is a fuel and ignition control module for Harley Sportster and Twin Cam engines, allowing real-time adjustment of fuel trim and spark retard via pushbutton interface and LED display. It enables up to 10° of spark timing retard to combat pre-ignition knock in modified engines.

Features

• Fuel trim adjustment across RPM and throttle position ranges
• Spark retard up to 10°
• Pushbutton interface with daylight-readable LED display
• Compact mounting footprint

Specifications

• Brand: Daytona
• Manufacturer Part #: 16200
• Length: 5.85 in
• Width: 7.3 in
• Height: 1.9 in
• Weight: 0.61 lbs

Fitment

Fits 2007-2021 Harley-Davidson Sportster (XL) and 2001-2011 Sportster with 36-pin connector. Not legal for use in California on pollution-controlled vehicles — check local emissions regulations before installing.

Frequently Asked Questions

What's the difference between Twin Tuner II and the original Twin Tuner?

The Twin Tuner II adds the ability to retard spark timing up to 10° to prevent knock, in addition to fuel trim control.

Will this fit my 2021 Sportster?

Yes, it fits 2007-2021 XL Sportster models with the 36-pin connector. Verify your bike's connector type before ordering.

Can I use this in California?

No — this module is not street-legal in California on pollution-controlled vehicles. Check your state and local emissions rules.

Do I need a tuner to set this up?

The Twin Tuner II uses intuitive up/down pushbuttons and an LED display for real-time adjustment. You can dial in fuel and spark settings without external software.

Will I need to retune if I add intake or exhaust?

Yes — any modification to engine breathing will likely require adjusting fuel trim and spark retard with the Twin Tuner II to maintain optimal performance and prevent knock.