You are correct #1 setting becomes 40 hp and # 5 setting becomes 180 hp, the juice does not use pressure on the 04. 5/05's on any setting. have mine stacked with an EZ but only use the lowest setting on the EZ and Don't believe I'll ever use the EZ on the highest setting of the juice, just can't imagine it. I haven't had any problem with self control and staying out of #5 setting after trying once I still have a stock clutch,turbo and plastic intercooler. no boost elbow with these electronically controlled wastegates and not needed or recomended. I set mine to defuel at 34 to 36 pounds of boost but have seen 40 (pushing my luck on the little turbo) No sense to push turbo over designed map anyways. I'm not remembering any RMA2000? but did have to sign a form to get the hot version. I bought mine this way never had the standard version just leaped right in. No probelm with questions ask away. yes I feel that were hopefully here to answer each others questions as best we can. best of luck to ya.