If your running out of scale on your LB7 rail pressure sensor then this adapter is what you need! Factory LB7 sensors max out at approx 26,600psi which is not enough for todays aggressive tuning. Installing this adapter will allow you to run a LML rail pressure sensor which has a larger 31,000psi scale. This is a precision machined, heat treated fitting designed specifically for the job. Installs in place of your factory sensor at the fuel block in the valley.
Use in conjunction with E05-10521 or GM #12611873 / 12651990.