Quote:
Originally Posted by tadtaggert
I would expect anything in the >500hp range to have considerably more than just an ECU update. The Alpina B5 is just over 500hp and has among the changes a new intercooler, new pistons, and modification to the transmission.
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+1.
If you contact Racing Dynamics regarding the specifics, they will clearly advise you that the maximum horsepower figures they are quoting are only AFTER you purchase their package that includes modifying the internals of the engine. I believe increasing bore & stroke is one of those mods.
