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Check vehicle fitment
Tarett
PSS9ADPT
Product Information

The 2.25" adaptor allows you to match a 2.25" ID spring up to the bottom of the factory or Tarett rear upper mounts on a 986 or 987. This transfers all the spring load to the bottom of the mount instead of putting it on the weak rubber bushing of the stock mount, or the monoball of the monoball mounts.
On a Cayman, this 2.25" adaptor allows you to use any rate 60mm (2.36") rear spring with your PSS9/10 kit. The PSS9/10 kits come supplied with a progressive tapered spring. The bottom is 60mm,but the top is larger, making it impossible to replace with a different spring. This adapter sits against the bottom of the upper strut mount, and allows the use of any off the shelf 60mm straight spring. The PSS9/10 front springs are 60mm straight springs, allowing them to be replaced with no mods required. We recommend revalving the struts for optimum performance when changing spring rates to over 550 lbs.
Qty 2 required.
Product Information
Spring adapter (each), For 986 Boxster & 987 Boxster/Cayman.
The 2.25" adaptor allows you to match a 2.25" ID spring up to the bottom of the factory or Tarett rear upper mounts on a 986 or 987. This transfers all the spring load to the bottom of the mount instead of putting it on the weak rubber bushing of the stock mount, or the monoball of the monoball mounts.
On a Cayman, this 2.25" adaptor allows you to use any rate 60mm (2.36") rear spring with your PSS9/10 kit. The PSS9/10 kits come supplied with a progressive tapered spring. The bottom is 60mm,but the top is larger, making it impossible to replace with a different spring. This adapter sits against the bottom of the upper strut mount, and allows the use of any off the shelf 60mm straight spring. The PSS9/10 front springs are 60mm straight springs, allowing them to be replaced with no mods required. We recommend revalving the struts for optimum performance when changing spring rates to over 550 lbs.
Qty 2 required.
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12