Quote:
Originally Posted by besiktas
I really doubt that you can add an extra 100hp by chip. If it was true, and that simple, bmw would have done it long before.
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The reason why the 63's were able to get that much bump is that the motor is detuned from factory. It's the same 63 engines in the E class that makes 500 at the crank, so a simple tune would have boosted it up to ~520 at the crank, which means the tune only provided about ~15 hp gain the crank compared to the "standard" output of the 63 engine.