What should i do to my Infiniti G37 to Increase horsepower and Torque?

I'm looking to add as much horsepower and torque as possible|||Cheap:

intake

hi flow cat or test pipe

exhaust

tuning



Expensive:

supercharger/turbo



It depends on how much are you want to spend. Supercharger and turbo will give you the most hp and torque|||As mentioned before, I/H/E (intake/headers/exhaust) is always the basic route to go before going forced induction. In the new Modified/SuperStreet/ImportTuner mag (I can't remember which one, but it's the 2010/2011 December/January issue), they made 50+hp with the Stillen stage 3 intake, Stillen exhaust, and a tune. But you can only do so much with bolt-ons, the best bang for your buck is going to be a turbo or supercharger kit (if you have the 7AT, then they have low-boost options as well) from a reputable company such as Stillen, Jim Wolf Tech, or HKS. If you live in SoCal, Stillen is in Costa Mesa in Orange County and JWT is in El Cajon, a few minutes east of San Diego. Give them a visit and they can help you out tremendously.|||Cam and a chip.