Supertech SPRK-H1021D Dual Valve Spring 92 psi @ 40.4mm lift
Comes with the standard Supertech Titanium retainers
Includes valve seats seals & keepers for upgrade to dual valve springs 
K-Series Engine

Specs:
ALL NEW 8620 Billet Material

2.2 ENDURANCE 
Intake: 13.5 mm Lift / .250 Duration @ .050 
Exhaust: 12.2 mm Lift / .246 Duration @ .050

003.2
Intake: 13.8 mm Lift / 254 Duration @ .050 
Exhaust: 13.2 mm Lift / 250 Duration @ .050

004
Intake: 14.5 mm Lift / .275 Duration @ .050 
Exhaust: 13.2 mm Lift / .272 Duration @ .050 

004.5
Intake: 14.5 mm Lift / .276 Duration @ .050 
Exhaust: 13.7 mm Lift / .274 Duration @ .050

Engine and Application:
HONDA K-Series Engines: K20A2, K24A2

Features:

   Fits Both K20 & K24 Engines Threw 8th Generation Honda Civics

** Not Compatible with K42Z7 & K24W1 Block / ENGINES **

Fitment:

Acura
02-04 Acura RSX Type S 2.0 K20A2
05-06 Acura RSX Type S 2.0 K20Z1
04-08 Acura TSX 2.4 K24A2
Honda
06-07 Honda Accord 2.4 K24A8
06-11 Honda Civic Si 2.0 K20Z3