I used it on my 2008 C14 with a PCIII after installing the GiPro TRE and finding I had a hesitation when I went to full throttle at low speeds in 3rd and 4th gear. Its pretty flexible, you choose the percentage of extra fuel you want, the duration of the extra fuel, and how much throttle opening it takes to activate. I went with 15 percent added fuel, a half second duration, and 50 percent throttle opening and the hesitation disappeared.