The parts for the most part are good and customer service is mostly good these days, havent seen many people have issue lately.

Is just the way they say you can add mods is whats wrong. The first build sheet says all you need to run a 3.4 pulley is a 180 thermostat, colder plugs, their pcm and a downpipe. I bet for just about any car, it will still see a decent amount of KR and need for exhaust flow to be safer.