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Fish Tuning DSP5 Switch – LB7 Duramax (FTDSP5LB7)
Take full control of your 2001–2004.5 LB7 Duramax with the Fish Tuning DSP5 Switch. This application-specific rotary switch lets you change between up to five EFILive DSP5 tunes on the fly—no laptop, no reflashing, no stopping.
Simply turn the knurled aluminum knob to select the tune that matches your needs: economy for the daily commute, a safe tow tune for heavy loads, a street tune for everyday power, or higher performance levels when you want more. The switch works by sending specific resistance values to the ECM, allowing your DSP5-compatible EFILive tune file to instantly load the corresponding map.
Fitment
- 2001–2004.5 GM 6.6L Duramax LB7 only
- Wire colors: Blue / Black
- Installs into Blue ECM connector pins 49 and 69
Important Tuning is not included. This switch requires a properly configured DSP5 EFILive tune file already flashed to your ECM. It will not function with standard single-tune or non-DSP5 files.
What’s Included
- DSP5 rotary switch with high-temperature rated wiring
- Black aluminum knurled knob
- 1–5 position decal
- Split loom tubing
- Allen wrench
- Installation pins and instructions
Easy DIY installation for most owners. Mount the switch in a convenient location under the dash or in a blank switch panel for clean, in-cab access to all five power levels.
Unlock the full potential of your LB7’s EFILive tuning with the Fish Tuning FTDSP5LB7 DSP5 Switch—simple, reliable, and built specifically for your truck.
Fish Tuning DSP5 Switch – LB7 Duramax (FTDSP5LB7)
Take full control of your 2001–2004.5 LB7 Duramax with the Fish Tuning DSP5 Switch. This application-specific rotary switch lets you change between up to five EFILive DSP5 tunes on the fly—no laptop, no reflashing, no stopping.
Simply turn the knurled aluminum knob to select the tune that matches your needs: economy for the daily commute, a safe tow tune for heavy loads, a street tune for everyday power, or higher performance levels when you want more. The switch works by sending specific resistance values to the ECM, allowing your DSP5-compatible EFILive tune file to instantly load the corresponding map.
Fitment
2001–2004.5 GM 6.6L Duramax LB7 only
Wire colors: Blue / Black
Installs into Blue ECM connector pins 49 and 69
Important
Tuning is not included. This switch requires a properly configured DSP5 EFILive tune file already flashed to your ECM. It will not function with standard single-tune or non-DSP5 files.
What’s Included
DSP5 rotary switch with high-temperature rated wiring
Black aluminum knurled knob
1–5 po[...]
Fish Tuning DSP5 Switch – LB7 Duramax (FTDSP5LB7)
Take full control of your 2001–2004.5 LB7 Duramax with the Fish Tuning DSP5 Switch. This application-specific rotary switch lets you change between up to five EFILive DSP5 tunes on the fly—no laptop, no reflashing, no stopping.
Simply turn the knurled aluminum knob to select the tune that matches your needs: economy for the daily commute, a safe tow tune for heavy loads, a street tune for everyday power, or higher performance levels when you want more. The switch works by sending specific resistance values to the ECM, allowing your DSP5-compatible EFILive tune file to instantly load the corresponding map.
Fitment
- 2001–2004.5 GM 6.6L Duramax LB7 only
- Wire colors: Blue / Black
- Installs into Blue ECM connector pins 49 and 69
Important Tuning is not included. This switch requires a properly configured DSP5 EFILive tune file already flashed to your ECM. It will not function with standard single-tune or non-DSP5 files.
What’s Included
- DSP5 rotary switch with high-temperature rated wiring
- Black aluminum knurled knob
- 1–5 position decal
- Split loom tubing
- Allen wrench
- Installation pins and instructions
Easy DIY installation for most owners. Mount the switch in a convenient location under the dash or in a blank switch panel for clean, in-cab access to all five power levels.
Unlock the full potential of your LB7’s EFILive tuning with the Fish Tuning FTDSP5LB7 DSP5 Switch—simple, reliable, and built specifically for your truck.