Previous tests have shown unequal-length short-tube headers are worth around 7 hp on a near-stock 5.0 engine, while equal-length short-tubes typically pick up around 11 hp. Frankly, we were amazed at ...

AtVettewe love bolt-on performance parts. Maybe it's the nearly instant gratification they provide or it could be that they are easy enough for a caveman, or editor, to install. In any event, they are ...

Conventional wisdom has it that long-tube headers offer more performance than short-tube headers, albeit at more expense and installation effort. We decided to test that conventional wisdom and share ...

On a previous episode of Engine Masters, we watched David Freiburger (of Roadkill fame) and his crew run a comparison test between differently sized headers of the same long-tube variety. This time, ...

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 ...