I read in the forum that the OEM cat on the GXP only comes out if you raise the engine up an inch? Can someone walk me through how to do that exactly...? I've replaced three on my previous Solstice's in the past but, they were all 2.4 versions; only had to lift the car & OEM cat was able to be removed from beneath. I really want to start adding performance parts & this will be the first mod I do to my first GXP I've ever owned. Freaking LOVE this car; thanks in advance for all your help!