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2001 regal gs ls swap

  1. 01ls to gs swap??

    FWD 3800 Engine Swaps
    Hey I'm looking for help I recently bought a regal ls with a messed up engine so I went ahead and bought a gs engine for it unfortunately the engine didn't come with the wiring harness or the computer so they told me that the 98 gs wiring would work but when I took it to my mechanic he told me...