Quote:
Originally Posted by mattyv
BMW Performance Power kit stage 2 if you want to keep it "factory". It incorporates a mild tune (equiv. to the iS N54 cars) along with an improved radiator, bigger fan and additional water cooler. Excuse me if I missed anything. A number of places have it on special at the moment for USD1,200.
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For the PPK the main radiator is the same/untouched 135i part. The PPK only adds an
aux radiator (tucked up into the drivers fender area) a higher wattage(stronger) radiator fan, new spark plugs and the SW tune (+23 Hp or so).