I am upgrading from the TN Injectors to the 550cc RC Eng ones I bought in a day or two and I was wondering if I need to get any O-rings from the dealer? I see on the Rc's that there is a O-ring on the top and bottom of it so is it just a drop in replacement?

 

yes sir, the injectors will come with their own injectors..in the past, i had to replace some of the rc o rings, got them at NAPA... no need to go to the stealership, especially since they aren't oem anymore

 

Make sure you put a little lube on the o'rings before you install them