Why not just stick with a D16z6 and a P28 ecu? Or keep the P06 you most likely have and convert it to a P28. Look around a Crome, TurboEdit, Uberdata --- DIY Honda ECU tuning and chipping resources, products write-ups and links. Widebands, Fuel Pumps, Intercoolers, ECU Chipping, Wideband...