to get more fuel in there... i was running 200bhp on the yellow at 16psi, but I changed a few things i.e. near full rebuild, new pace front mout intercooler, bigger 48 exhaust housing turbo etc... Karl Norris who did the tune up for me recommend me to go for a green to get the fueling right for 240bhp.

So it all depends on what setup uve got and what you want to run, I wreckon a green would be a bit over kill for a 200bhp setup! Ive got my old yellow injector somewhere, if ur interested u can have it for a £10er, its working pefect and fit straight in the ERL mount you get with the kit.

I highly recommed the fifth injector, and is a must for a top bhp RS running a metering unit!