I don't agree with people who just spout off vendors.
It's all about what you want to accomplish. For instance I went with takeda C.A.I. because I don't want to cut. If the OP doesn't want to cut stillen Gen 3 might not be for him.
I will say though that a C.A.I. is cheap and offers pretty decent WHP for the money. Which one you want is up to your needs though.
Also test pipes are a cheap way to get extra HP at the wheels.
Exhausts are expensive and with the above 2 mods they don't actually yield much in terms of extra power. So if you do get an exhaust, do it because you like the sound
Breathing mods are a quick and cheap way to get up to 310-320 WHP IMO But don't just go with what everyone else has. Do some research. Buy what YOU want and what works for YOUR needs.
King: our car doesn't have the steering lock problem. You don't need to worry about it. Also don't forget to check the suspension for those black transport thingies that dealerships ALWAYS forget to remove.