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Old 11-01-2019, 08:47 PM   #6
thstone
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
All of the tunes that I've seen on a stock 986 added 5%-7% above stock horsepower. Any claim of 10% or more for a 986 is highly suspect.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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