When it comes to classic hot-rodding tricks, one of the very first things enthusiasts do is modify the exhaust for better sound and performance. The tradition started long ago, in an effort to improve ...

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 ...

Back when this '99 Trans Am was nearly new, the original owner installed a set of mid-length headers that served the Bird well, but the time has come for a change. There is a small hole in one of the ...

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, ...

Since its debut in the '90s, the LS engine market—Gen III and IV small-blocks—has grown exponentially, with new and better parts being introduced at a fever pitch. What does this mean for us? As the ...