Add HP or performance? There is a difference. A bunch of lap dogs got together and calculated the relative performance gains on a local 90 second race track. It looked something like this:
Add quality chip/headers/exhaust, $1800 cost, 20 hp gain, shave 3/10ths/lap.
Add 3.4L motor (100hp), $10k cost, shave 2 seconds/lap.
Remove 400 lbs, $0, shave 4 seconds/lap.
Add comp tires and weekend performance driving school, $1000 cost, shave 10 seconds per lap.
Choose wisely.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
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