Supertech now offers a performance dual & single valve spring and retainer kits for popular Honda / Acura engine applications.
 
Supertech 16/32pc 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 16pc Titanium Retainers
Supertech titanium retainers prevent valve float and strength up your valvetrain. Retainers are CNC machined from 6AL4V grade titanium.
 
Compatible with : 
02-06 RSX Type-S (K20A2/K20Z1), 06-11 Civic Si (K20Z3), 04-08 TSX (K24A2), 09-14 TSX (K24Z3)

SPRK-H1022D (80 lb) stock cam extra pressure 
SPRK-H1021D (95 lb) all motor / aftermarket cams 
SPRK-H1019D ( 97 lbs)  Turbo use