Bolting on a set of headers has long been one of the first moves a hot rodder makes in search of more performance. Traditionally, factory iron log exhaust manifolds are set aside in favor of a pair of ...

We always considered the factory exhaust system fitted to Mopar musclecars as good. As factory systems of the era go, the OE Mopar exhaust was generally the best. Mopar iron manifolds were typically ...

Last month, we covered how a dyno operates and some of the mathematics involved with recording and calculating the coveted horsepower and torque numbers that enthusiasts lust after. This month, we are ...

If you have the need to peel your face back with speed, Dodge has the answer: the 2010 Viper SRT-10 ACR-X spec racer. It's a track-only, high-output version of the already brutal Viper SRT-10 ACR, and ...

Here at VETTE, we've heard both sides of the engine-dyno argument. On one hand, a stout dyno sheet offers bragging rights to the owner, but on the other, you can't race a dynamometer, and they cost a ...