• Pro HD Dual Valve Springs (High RPM / High Boost) If you're building a 2.4L 2RZ-FE or a 2.7L 3RZ-FE these Pro Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 100lbs of seat pressure at a 1.400" install...
    $312.89
  • Dual Valve Springs (Naturally Aspirated / Low Boost) If you're building a 2.4L 2RZ-FE or a 2.7L 3RZ-FE these Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 75lbs of seat pressure (1.4″ install height)...
    $312.89