Irate Model IDP-COMPVSKDescription IDP competition valve spring kits give 150psi seat pressure for engines running very high boost and need to maintain proper valve control. We recommend these for anyone...
IDP competition valve spring kits give 150psi seat pressure for engines running very high boost and need to maintain proper valve control. We recommend these for anyone using over 600RWHP or 300/200cc hybrids and up.
