i plan on buying a set of rc 440's off someone. he says they dont include o-rings. do i have to use aftermarket o-rings or is my oem ones fine? if i cant use my oem ones, where can i find sufficient o-rings for the injectors?

 

some injectors come with them some don't, if not your stock ones will work just fine.

Chris Green

 

Napa sells oil/gas resistant o-rings.