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      02-14-2012, 01:01 AM   #8
Beyu
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Drives: 135i
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Quote:
Originally Posted by Robocheme View Post
I'm not a car guy. Why do they detune an engine? For emissions? mileage? something else?
It's my understanding that car companies detune engines for all of the reasons that you've listed plus other things like bypassing heftier taxes b/c of emissions, production costs, HP/torque figures being too close to a more expensive car/engine, or simply because the company can make more money by offering both a detuned version and a un-detuned version for those willing to pay more.
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