hi just selling my evo ix which is 510 bhp its costing me a fortune to run im looking for a 172 cup what sort of gains would i get with head work cams throttle bodys full exhaust going to build a full on track weapon cage stripped out etc /seems to me the clio engine doesnt want to give the power up been looking at civic type r as well minimal mods carbon air box/ rbc/ manifold back exhaust/ k pro ecu 250 bhp from a 2lt 16v wow any experience with these mods to a 172 cup