GSC Power-Division Valve Spring Seat Set for Nissan GTR R35 VR38DETT 1700cc This is the ONLY top

This is the ONLY top mount t4 kit on the market that allows you to retain power steering and a/c that means 2000+hp capability while being still being able to use the car on the street and not even notice

clamps and mounting points you or your trusted mechanic can install it quickly and easily

Integrated with the factory water-cooled transmission cooler

1 Cayman / Boxster (Base / S) models (2005-2008) 987

*** Triple Adjustable - allows you to fine tune the high/low speed compression settings to give you full control over how the car reacts on the starting line and down track

GSC Power-Division Valve Spring Seat Set for Nissan GTR R35 VR38DETT 1700cc This is the ONLY topGSC Power Division Valve Spring Seat Set for Nissan GTR R35 VR38DETT Part # GSC 1085 GSC Power Division Valve Spring Seat Set for the Toyota 2JZ GTE and Nissan VR38DETT. Perfect fitment when those need to increase spring pressure over the factory shim. These seats are specially made to fit into the tight 2JZ GTE Spring cup and reduce spring install height allowing for increased spring pressure. Please note that these will reduce spring install height