6.7 Powerstroke Shift-On-The-Fly (SOTF) Switch (Red/Gray) – Fish Tuning FTFord2020-2021

Upgrade your 2020-2021 Ford Super Duty 6.7L Powerstroke with true on-demand tune control. The Fish Tuning FTFord2020-2021 Shift-On-The-Fly (SOTF) Switch (Red/Gray) lets you change custom engine tunes while driving—no need to stop, reflash, or plug in a device.

This 5-position rotary switch works as a simple hardware interface that communicates with your existing EZ Lynk or SCT tunes (commonly used with GDP Commander and similar setups). Turn the knob and your truck instantly adapts power delivery for towing, hauling, daily driving, or higher-performance runs. It uses calibrated resistance values so your tuning device and ECM can select the correct map in real time.

Key Benefits

• True Shift-On-The-Fly control — Switch between custom tunes on the move for different loads, terrain, or driving styles.
• Compatible with popular platforms — Designed for EZ Lynk and SCT tuning systems.
• Clean, reliable signal — Standard-resistance design provides consistent communication with your tuner and ECM.
• Durable, cab-friendly design — Red/gray finish with a solid feel for everyday use.

Important Notes

• This is a hardware switch only. It does not include or create tunes. Your truck must already have SOTF-enabled custom tunes programmed by a professional tuner.
• Confirm with your tuner that this switch style matches the sensor circuit (fuel temperature or CAC/IAT) used in your specific calibration before ordering or installing.
• Not returnable once installed in most cases—verify fitment and compatibility first.

Fitment: 2020-2021 Ford 6.7L Powerstroke (F-250 / F-350 / F-450 / F-550 Super Duty)

Part Number / SKU: FTFord2020-2021

Pair it with a matching mounting bracket for a clean install, and you’ll have instant, fingertip control over your Powerstroke’s performance whenever you need it.