from what i read here and researched i've decided to add dynatech longtubes to my 2007. I am also going to add an exhaust system, so that i can get it all out of the way at once. I want the dual straight back look for sure, however, i am not versed in the pros and cons to si/do and di/do systems, x pipes vs h pipes, and piping/muffler sizes. whats the optimal setup for a good sound that isnt annoying? ... all your guys help would be greatly appreciated, as many of you seem to know a hell of a lot of what youre talking about. I'd hate to get it all together and realize that i chose the wrong setup because i didnt go the extra yard. thanks.
and yes the exhaust will be magnaflow, unless persuaded otherwise by you guys.