Supertech now offers a performance dual & single valve spring and retainer kits for popular Honda / Acura engine applications.

Most offered kits (unless otherwise specified) include 32 total valve springs and 16 titanium or aluminum retainers and may include spring seats (depending on engine application). 

Supertech Single/Dual Valve Springs:
Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control.

Supertech Titanium Retainers
Supertech titanium retainers prevent valve float and strength up your valvetrain. Retainers are CNC machined from 6AL4V grade titanium.

Valve spring & retainer kit specs - reference part number below and select your choice via 'Kit Options' in pull down menu.  

C30/32 (90-05 NSX) - 24 x springs/retainers/spring seats

• SPRK-H1000D/NSX - Dual Valve spring 67@ 36.4mm (24)SPR-H1000D/NSX+ (24)RET-K20A2/T2+(24)SEAT-H1020D
• SPRK-H1005D/NSX - Dual Valve spring 80@ 36.4mm (24)SPR-H1000D/NSX+ (24)RET-K20A2/T2+(24)SEAT-H1020D