if there is nothing wrong with your stock block other than seals and you are gonna pull it anyways, just fix your block. its the same as an STI for the most part anyways. after that, go stage 2 with a catless exhaust and see how you like it.
4-Time NNJR ESP Season Champion -15 ESP
3rd Place in 09' Pax Championship/Driver of the Year
2012 Northeast Divisional Champion in ESP