Hello, i have a 2013 Terrain in my shop, and was wondering if anyone has swapped a California Emissions 2.4 to a Federal Emissions 2.4? We bought a wrecked Equinox for the engine, which has federal, and planned to swap it into the Terrain, which has california. My thoughts were swapping them and possibly sending the PCM to a programmer and having them program it for Federal, swapping the intake, and exhaust manifold. Has anyone here done this, if so am i on the right track here or are there other internal issues id be running into that im not thinking of.