Most Mopar owners love the sound of their muscular V-8's. In the past, we've dyno'd and strip-tested tti's (Tube Technologies Inc.) headers and exhaust systems for small- and big-block cars. In each ...

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 ...

Now that we have a better understanding of why headers work, the question now becomes do they work in the presence of boost? To find out, we decided to run a series of tests by comparing headers ...

Performance Enthusiasts seem to have a one-track mind. No, not the kind that constantly steers us to pictures of Jessica Alba and Pamela Anderson, but the one that provides tunnel vision in our quest ...