savage bulldogs

iTrader: (6)

im gonna be looking at having a remap soon and will be buying some carl Davey spacers to fit some phase 2 550's into my phase 1.5 inlet .
There's a visual difference between the phase 1.5 and phase 2 injector caps so which ones will I have to use ? (as id like to prep and paint em)
thanks in advance
clive

savage bulldogs

iTrader: (6)

Here's a pic in case that helps
The red ones are the phase 2's


Do I need to use the phase 2 caps to suit the injectors?
Or do i need to use the phase 1.5 caps to suit the rails ?
Or are they the same dimensions, despite the different appearance ?
Cheers Clive