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Discussion Starter · #1 ·
Hey everyone!

I joined today because I am seriously considering getting a GTO pretty soon. I have a 2003 Evolution right now, but I've liked the GTO styling since I first saw it as the Monaro, and I'm really starting to shift my interest away from the import side of things and really embrace what the domestic market has to offer. Anyway, just wanted to say hello...you'll probably see me lurking in the classifieds section mostly. I did have one quick question...stupid noob question, I know...but what's the difference between an M4 and an M6? Is it the year produced, engine, or what?

Also, which model/year came with dual exhaust...I thought it was the '05+, but I'm not 100% on that. Thanks guys!
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