Ever since the first race cars were built, it's been helpful for drivers to know their engine speed. It may sound obvious, but engine power is always a function of engine speed, so accurately knowing ...

Auto Meter recently launched its Diesel Tach Adapter which is designed to quickly provide a tachometer reading in diesel applications. Auto Meter’s newest tach adapter uses an inductive pickup that ...

Every year, us lucky editors sit down with aftermarket manufacturers and listen to their best new product pitches. Going in, we never know if we'll be stifling back yawns, or if a new product is going ...

You want the classic car, of course, and you may want vintage FE horsepower. That's perfectly acceptable, but when it comes to maintaining your vehicle's vitals, there are more accurate instruments on ...