Go0 for a proper KO4, KO3/S Hybrids will never reach the power of a proper KO4 as they are limited by their size. RobbieC's car being the exception of course. Just my 2p
wrong!
k03/4 hybrid has more potential as its stock manifold flows more than k04 setup
turbo for turbo they end up the same thing, given the internals ARE k04 on the hybrids
most k03/4 hybrids flow 220g/s region, k04's 200g/s on equivalent maps
easiest cheapest is k03/4 hybrid route
keep your downpipe, oil & water lines, tip (if silicon)
just add 225 injectors and 80mm maf housing and map to suit