nice mods (Y) m loving it ... hondas are meant for such stuff 
and who was saying abt not washing wid pressurize water ? i dont think so there mite be any problem washing any cars engine wid pressurize water ... i always get ma car serviced like this and it really make a lot of difference in drive ... dont know much abt efi cars but problems occur only when they wash cars wid CNG switched on wid pressurized water which cause car start missing and stuff ...
so always get ur car service on petrol wid one or 2 areas covered wid some plastic !!