If you are wanting to buy that specific 4runner My first point of imput is that you may find it a bit underpowered for weight to power ratio. Second the dealer probably has 8500 into the purchase of that truck and will probably go lower then his offer. Eibach might have a lowering kit for it. Most people who modify them to lower them usually run air bag suspensions.
http://www.streetsourcemag.com/OwnerProfiles.aspx?Model=13&Search=Search
there are diffent 4runners with modifications there. A header at most will recoupe you 5-7 hp and with a 400.00 price tag I don't feel it will financially benefit you. if your looking just for sound go for a free flowing muffler and high flow catilyaic (SP) converter. You will get about the same 5-10 hp gain or a little more with those and the cost range is the same.
The best option to improve handling is probably a polyurathane bushing kit. The easiest way to cheat lower the truck would be to put a lower profile tire on it.
http://www.streetsourcemag.com/OwnerProfiles.aspx?Model=13&Search=Search
there are diffent 4runners with modifications there. A header at most will recoupe you 5-7 hp and with a 400.00 price tag I don't feel it will financially benefit you. if your looking just for sound go for a free flowing muffler and high flow catilyaic (SP) converter. You will get about the same 5-10 hp gain or a little more with those and the cost range is the same.
The best option to improve handling is probably a polyurathane bushing kit. The easiest way to cheat lower the truck would be to put a lower profile tire on it.