Welcome to Fish Tuning!

We manufacture Fish Tuning Advanced Dual CP3 Controllers for either Duramax or Cummins. And, in addition to our custom stickers and decals, we manufacture and sell CSP5, DSP5, DSP5 Keylock and DSP2 switches. We also have spare parts as well as Ford, LML and Cummins/Titan switches for EZ LYNK tunes. Coming soon: revamped DIGITAL DSP5 and DIGITAL CSP5 switches!