If we make the intake, throttle body or head ports bigger ... the tuning effect offered by long-tube headers, we set up a test comparing a typical shorty replacement header with a traditional ...

What is it about exhaust scavenging, headers, and systems that leave us in a perpetual fog? Shorty ... medium ... long-tube? Pipe size? What collector type? Which is ...

But these were different; they were shorty hedders-a style made famous ... Disadvantages: Shorties retain some classic woes of headers, i.e. higher maintenance, possible tricky bolt access ...

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 ...