I'm planning to retrofit a late-model LS engine into my 2002 Jeep 4x4, and want to fabricate my own exhaust headers. It needs to conform to California emissions standards. I don't want ugly "smog" ...

LS V-8 engine swappers are a unique breed. As hot-rodders, they know the deep devotion to car brands that most folks in the hobby have. And yet, LS swappers are iconoclasts in microcosm. There's ...