MX5 NA/NB Piper Valve Springs Set (16) (New) (Aftermarket)

MX5 NA/NB Piper Valve Springs Set (16) (New) (Aftermarket) The Piper Valve Springs for Mazda MX-5 are an ideal match for NA NB MX-5 owners who are boosting their engine’s performance the next level. Used in race cars across Europe, these valve springs are proven in the most demanding conditions. Suitable for all B6 and BP engine from 1989-2005. The springs are compatible with OEM retainers, facilitating straightforward installation. Features Rate 42 N/mm (242 lbf) Seat Pressure 25 kg (55 lbf) Fitted Length 37.2 mm Nominal Internal Diameter 18.08mm Nominal Outside Diameter 25.6mm Crush Height 23.5 mm To Suit: Mazda MX5 NA/NB 1.6 & 1.8L 1989-2005