I have the dyno sheet to back up my numbers with my M90, @ 430 rwhp on an email tune, with a stock fuel system, and my mods in my sig, I can see the M90 push at or over 450 rwhp with my mods, plus the addition of cams, upgraded fuel system, 10% balancer, hell even more on METH or Spray. Everyone loves to hate on the M90, because it isn't the big blower, that you have to de-tune on a stock block!! YEAH that makes a whole lot of fucking sense for someone that doesn't want to go into the engine and stay safe!! GO SPEND your $6000 on the TVS, get it dyno tuned and supporting mods and forge the bottom end to handle the power, I'll still sit back and smile with my turn key system with the upgrade kit and continue to stay safe on the stock bottom!! I get so tired of hearing fucking idiots say "Fucking baby M90's and their 380+ rwhp, that things a POS!!" For someone who doesn't track and/or is a daily driver like mine, the M90 is an excellent choice. Not even close to being or feeling like an average car at 420+rwhp!! You can't even use 600+rwhp on the street anyways!!
*officially off my soap box!!*