thanks im going to leave the plenum ones till i get my plenum spacer.
Remember that the plenum spacer bolts are longer by the thickness of the spacer, so your coloured ones may be to short.
it stated on the ebay page that it comes with longer bolts for a 5/16 plenum spacer but i think i get bolts with the one im ordering off here ( cant remember the company lol ) edit just checked its a motordyne from Adrian