These are a hot street/competition injector. They displace 225cc of fuel and we pair these with 30%-100% nozzles. The smaller nozzle will help with fuel atomization and for driving on the street while the larger nozzle would be better for top end power. HOLDERS does not recommend towing with this injector unless you have very extensive modifications. You will need fuel system upgrades for this injector as well as possibly upgrading your high pressure oil pump depending on the health of your high pressure oil system for them to run to their full potential. HOLDERS would recommend a regulated fuel return along with a fuel pump upgrade. HOLDERS always recommends you check fuel pressure under load after installation. You want a very minimum of 45psi of fuel pressure at any time
This is for a set of (8). This is not an exchange service. You send your injectors in to be rebuilt and receive back the same injectors that you sent in. You know the history and mileage of these injectors. These get all the major wear items replaced such as nozzles, nozzle lift spring, piston return spring, all seals and gaskets, spool valves polished and all sealing surfaces are refinished. These are all bench tested on our Hartridge HA-230 flow bench once completed to ensure all flow rates and functionality. These include a 6 month warranty.
If your injectors cannot be rebuilt with this service we will contact you for options and proceed from there. HOLDERS always recommends especially on larger injectors to go with HOLDERS Premium Remans. With all new parts in them they are naturally more reliable and will have better longevity.