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Performance and TuningDiscussion forum for various performance tuning techniques and questions
i recently purchased an 01 225 hp roadster, first i got the apr download aka chip, looking at the HPA competition controller and looking for input from any users, is it worth 1G, i had a quaife installed in my 01 turbo jetta, cost more and was the best $$$ spent. are there any associated problems with the unit and does it effect reliability of the haldex system thanks in advance