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 ...

If you've ever been disappointed by the horsepower figures coming from your Jeep Wrangler JK, whether it has the 3.8-liter or the 3.6-liter V-6, and you've considered an LS swap, you're not alone ...

Jeep Cherokee XJ With an LS1 V-8 Swap. ... The engine is bored to .020 over stock, has 706 heads, an LS2 intake, a 92mm Holley throttle body, a mild cam, shorty headers, ...

QUESTION. 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.