Yea they turn to see where that horrible sound is coming from Magnaflow FTW here, IMHO Flowmaster sounds like s**t especially on late model vehicles. On old muscle cars its decent, but still not great.
45 angle and split the difference? lol b/t back and sides i like back a lot better

 

magna's sound like buddies '10 6.2 stock silverado! its cute!

 

What Magnaflows are you listening to? The 22"? You find a stock cheby that sounds like this:

 

Well those magnas do sound pretty dang good. And to answer the question as to the placement of the pipes I would deffinitely say straight back. But it's your truck, do what you feel. Thanks for all the comments

 

we u throw in all that..hell stock would sound good!