Just got a 06 GTO. Black with red seats 6 speed. I already have a 99 C5 that I installed a Hurst in and am thinking about the B&M for the GTO. My question is how hard is it to install and are there any good manuals for me to reference to. One more thing when did they start putting the MN12 in the GTO. My under the hood tag says MN12 not 6. Thanks guys.