I am new to the site and was wondering which engine is more reliable and which one has more options for upgrades? I am looking to purchase a Subaru WRX/STI engine and transmission for a project car, and owning a Volkswagen New Beetle with the 1.8 liter Turbo which is a far better engine than the 2.0 liter! Not just because of the turbo but overall! So, this is why I am wanting to know the history and facts about each engine before I purchase one. Also, I have to say that having two turbos does sound like less turbo lag, but as the old V8 guys say, "There's no replacement for displacement." PLEASE HELP!!!!!!