Sam on Instagram: "Here’s most of the GMMG phases. Believe it or not, this still isn’t every variant. Definitely hard to keep track of, and they’re fairly confusing after a while. Note that even the same package cars don’t sound exactly alike due to camera, indoor/outdoor, and wind conditions. . . . #gmmg #gmmgcamaro #gmmgregistry #gmmgtransam #camaro #transam #firebird #fbody #4thgenfbody #lsx #ls7 #ls1 #427 #c5r #gmmgexhaust"