A while back, we tested a Track Heat engine kit from Trick Flow Specialties on a high-mileage 5.0L. The Track Heat engine kit was designed as an upgrade that could be applied to anything from a bone-stock 5.0L to a wilder stroker application. For Part 1, we tested the merits of the system on a stock '94 5.0L, pulled from the engine bay of a high-mileage Mustang.

Belt-driven boost-makers, better known as superchargers, go with Mustang performance like hot dogs and baseball. The popularity of supercharging is evident by the sheer numbers of systems and configurations, especially those for the '11-present Mustang GT and Boss 302. Last we counted, there was no less than eight manufacturers offering varying levels of superchargers for that genre of Mustang. And there are even more kits for the Three-Valve.

Smart phones have become part of our everyday lives. People can't go anywhere or do anything without their iPhone or Android in hand. From plain-old cell phones 10 years ago, these hand-held devices have progressed into handheld computers that serve as portals to our entire lives. Facebook, Twitter, email, texting, paying bills, and even getting directions are all done on our smart phones. Well, now you can communicate with your car through yours.

Modifying our Mustangs often involves trade-offs: adding top-end horsepower could sacrifice low-end torque, a high-flow exhaust may bludgeon your eardrums, and a stiffer suspension can be just that--stiff.

Nitrous oxide is just plain fun. That kick-in-the-pants feeling when it hits is unmistakable and adds excitement to any ride. Additional horsepower at the push of a button gives you a different feeling of acceleration than any forced-induction or high-power N/A engine. The idea of power-on-demand at an affordable price is appealing to many, and can be a viable option for the street and track.