I recall using my E39 M5 vehicle subsequent to installing the ESS supercharger package, namely in the year 2010.
You are familiar with the remaining details, my friend, with great expressions of happiness 🙂
Although there may be some minor initial difficulties, once everything is resolved, the setup is excellent. I managed to accumulate over 50,000 miles on it over a span of 4 years. No problems whatsoever.
Take pleasure in your newly arranged configuration.
PS: Early adopters, such as myself, noted years ago that the throttle actuator was coming into contact with a slightly elevated fuel rail (after installing upgraded injectors), resulting in problems under wide open throttle (WOT). I only need a little adjustment to the fuel rail, and then everything was in proper working order. Have you encountered a similar experience? Essentially, the ECU was displeased with the input it received about the location of the throttle pedal. This feedback was related to the throttle actuator, which was causing friction with the fuel rail.
EDIT: Additionally, please investigate the potential implementation of methanol injection, specifically in the context of a non-intercooled configuration. Utilising an Aquamist system really enhanced the whole experience. I am delighted to facilitate an introduction between you and Richard, who is the proprietor of Aquamist. After much investigation, I concluded that he produces the most superior kits in the world. I mainly used it for the purpose of reducing the intake air temperatures (IATs), while also benefiting from the methanol component in the mixture, which provided a favourable increase in octane levels, similar to the effects of using high-performance racing fuel.
Please don't hesitate to reach out to Asbjorn Bohn or Hans Kirkerod, the founders and proprietors of ESS. Please inform me if you want to get their email addresses. (I am assuming that they have not been acquired in the last 9 years or so)