I just got a new Modified Mag (April 2007) and I noticed that vortechsuperchargers.com just introduced a supercharger kit for the IS300. It's supposed to make 305hp and 272tq at the flywheel. Everything is bolt on and it uses the plug 'n play uni-chip engine management. A satin or polished finish is available with a 3 year warranty on the supercharger unit. There is not price listed on the kit and I also didn't see it on their site. Just wanted to let you guys know. Could be a cheaper alternative to people who only want 300hp. Hopefully this isn't a repost.