If you are considering tracking your car, then I would highly recommend a UDP. Not for the HP gain, which may or may not exist, but just to play nice with your peripherals, especially your PS pump.
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James now has: 2008 987S 6 speed
Crashed: 2010 987.2 pdk in speed yellow!
Sold to a cool racer chick: 2004 986 S
YouTube channel: the PORSCHE as seen by NewArt
www.youtube.com/channel/UCohdrH2xHTklM1thxk0KKOQ?