180 otw? no way man, gsr rated @ 180hp at the crank (or 210) factor in all the losses and stuff impossible... one guy just dynoed his gsr @ 1 bar 187 otw, so stock boost 0.6-0.7 prolly around 160+
if u + the fat bottom mine is mebe at most 130? kehkehkeh
whatdamn, go evo straight! dun go gsr, complete waste of money lar. You WILL get bored and figure, alright time to put in good stuff, then u find out, kns flywheel dun have, conrod damn weak, piston must custom. go evo straight and spend extra on making it reliable.