Description
The S&S Cycle Insert Power Tune 550-1668 gives you precise control over your engine’s performance curve and exhaust character without requiring a full ECU remap or expensive dyno tuning. This bolt-on insert delivers measurable gains in power and torque while letting you dial in the sound profile to match your riding style—all without cutting into your bike’s reliability or warranty coverage.
Whether you’re chasing peak horsepower on the track or refining daily-ride rideability, this tuning solution bridges the gap between bolt-on simplicity and custom calibration depth.
- Manufacturer: S&S Cycle
- Part Number: 550-1668
- Type: Power tune insert
- Installation: Bolt-on
- Tunability: Power adjustment
- Tunability: Torque adjustment
- Tunability: Sound tuning
- Fitment: Harley-specific applications
- Requires: Compatible S&S fuel management







