Re: would the GDS FUEL PRESSURE SPRING be a good mod for me?
If you really want to control fuel pressure, get a regulated return or try plumb in a real regulator. This crap gives you higher fuel pressure. How much, who can say.
01 Excursion 7.3L Powerstroke. Gauges with AIH Delete, AIS, CCV Mod, 4' MBRP, BTS Trans, 6.0L Trans Cooler and Intercooler, DP-Tuner F5 chip, ITP In Tank Mod and Boost Annihilator, Diesel Innovation's Regulated Fuel kit, BTS Big Oil system, GTP38R Turbo with 1.15 A/R housing and BPD Stage II AC injectors. Bilstein Shocks with U front and A Rear.