I have a question. I have an 2002 Audi 1.8T. I am looking to upgrade to a GIAC performance chip and Neuspeed exhaust system. This should boost me up to 240 HP. I have already added a K&N high flow air filter and will be installing Denso Iridium plugs on my next service. What else can I do to increase performance short of a complete turbo system upgrade? Are these Brands I mentioned decent, or am I getting junk for my Audi? I have done some research, but you guys have been in the game longer.