Hi there,
as i´m german i can give some info about the guy who runs this company, but i´ve never had any business with him yet. Just can tell that i´ve heard from several german forum members that he´s done a lot of good work regarding car and engine setup and also good work in engine tuning.
he´s very active in a german forum
forum105.de • Foren-Ãœbersicht , a forum specially for 105 alfas, don´t know if his english is good or not, but it´s worth a try.
Thomas