These SLP headers have 1-inch primaries that dump into a 3-inch collector. Made from stainless steel, they're advertised to produce an extra 23 hp and 21 lb-ft at the wheels. The set pictured has an ...

It's an accepted part of hot rodding lore that headers help make more power and torque on any engine versus the typical stock cast manifold, but do you know why? It's all about flow, right? Well, yes ...

We had several different options for the exhaust system and headers on our 1963 Nova project car. We looked into everything from mild, shorty header/chambered muffler combinations, to ultra-loud ...