Thread: Coilovers
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Old 03-22-2020, 06:03 PM   #3
thstone
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
I don't know if this is what you're looking for, but this is what I have in my notes for the Boxster Spec springs which mount on PSS9's. They are also a 6" spring.

ID: 70mm (2.76")
Length: 152mm (6")
Usable Stroke: 98m / 4 inch
Max Stroke: 103.2mm / 4.06inch
Max Load: 825kgf / 1820lbs

Swift spring part numbers:
450LB: Z70-152-080 (448LB)
500LB: Z70-152-090 (504LB)
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
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