A friend just bought a 99 24v. He bought the Superchip which he's very happy with. Does the turbo need a boost fooler like my 12v does? Also, is the KDP a concern with the 99's? I've warned him about the electric liftpump. I also told him to keep the chip turned down or off until he installs gauges. For those running the FASS, is this a worthwhile upgrade? What fabrication is required? His rig is 4x4 xcab longbed.