Blox Racing Dual Valve Springs for DOHC VTEC - Single Piece (BXPT-10300-SP) 2563 leading to 100–300°F EGT decreases

leading to 100–300°F EGT decreases

5in of solid height to your spring

Includes Oval Style Tips 4" 102mm ultimate quality fits bumper beautifully

This is a significant improvement over an open diffs most of the time

s wind tunnel under controlled conditions

Blox Racing Dual Valve Springs for DOHC VTEC - Single Piece (BXPT-10300-SP) 2563 leading to 100–300°F EGT decreasesBLOX Racing valve springs are wound using super clean, chrome silicone alloy. These valve springs are designed and engineered for both high performance street driving and all out racing conditions. Each set provides maximum lift while preventing valve float and helps counter the effects of spring surge. These are perfect for naturally aspirated and forced induction engines. Easy installation, no machining is required. Highly recommended for