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Skunk2 Pro Series XP dual valve springs for Honda B‑series VTEC engines, built for high-rpm and boosted applications. Featuring Japanese-milled chrome-silicone wire, these dual springs deliver 93 lb seat pressure at 1.320" and 238 lb open pressure at 0.820", with a 0.718" coil bind. Heat-treated, shot-peened and nitrided, they resist load loss and prevent valve float above 11,000 rpm while accommodating extreme-lift camshafts.
Skunk2 Pro Series Honda/Acura B-Series VTEC XP Valve Spring Set (Dual Springs)
