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RB25DET NVCS Valve Springs. High performance Nissan RB25 valve springs with Titanium retainers.
Includes 24 springs, 24 retainers and 12 spring bases for the exhaust side to even up the install heights.
Intake: 83lb seat pressure at 30.40mm installed height.
Exhaust: 80lb seat pressure at 30.65mm installed height.
10.50mm maximum lift.
