Im lookin to give my 1.6 civic 02 abit more go and growl. Anyone got any ideas as to what the best mods for the D16V1 engine are and how much more power it gives. Im not looking to add to much power for insurance reasons but around an extra 25-30hp would be nice. I've read Princes 'Engine Swap' Thread and realise its difficult getting power out of D series engines so would I be better just swapping it for a B16A lump. I would prefer to keep the engine its got in it now if possible. Anyone got any ideas?