[afcbadam]

no ecu needed for a throttle body. they are on a zr 160. 4mm bigger that the zs120 throttle body. with this and a good inner wing 3-5 bhp is very possible. they come up on ebay all the time some go for as little as £30. as with the zt cams and a vvc manifold you may need a remap to set it all up correctly but not to sure, not really a k- series man but somebody will be along soon who is!