What mustang v6 mods should i do?

supercharger or turbocharger if willing to spend the money. nitrous http://www.lethalperformance.com/05-09-mustang-v6-superchargers-procharger-c-2342_2377_2517

Shelby offers mods like superchargers, but if you want to go all out do this: http://www.weblogsinc.com/common/images/3060000000052032.JPG?0.0028383296272770364 Enjoy! :)

The next mod I would look into for your Mustang is lower ratio gears for your rear end. That will make your car quicker without modifying the engine. Gears with a ratio of 3.55 or 3.73 would be a good choice with a street car. Also get a short throw shifter if it has a manual transmission. A fairly extensive but very effective modification is a supercharger kit such as ones available from Vortech. They make a kit that will increase your Mustang's power to 330 horsepower and 337 lb ft of torque. With your dual exhaust system and cold air intake, it would make even more than that. http://www.vortechsuperchargers.com/product.php?p=93 Hope that helps!

Since you've got a sixer, it'll never be quite as fast as a V8 (ie. you should've gotten a GT/cobra). But you could get a performance tuner (diablo or sct), headers, supercharger/turbo, aluminum driveshaft, etc. There's a lot of things you can do as far as bolt on parts, but nothing adds more power than engine mods ...either way, it's pretty expensive. If you want more info you should check out 3.8mustang dot com. The forums are pretty decent.