well? i e-mailed a guy for a "shot peened, balanced, and micro polished" GSR crank

a guy is selling one but he keeps saying " great for turbo" but wont it bennifit a N/A car too, i mean im not running crazy compression or anything like that, just 11:1 after the ITR pistons, im just not sure whar shot pinged is, but i know its a process to help make it stronger. help me out