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80 Posts
:bigthumb:I just got a great deal on a SRT exhaust system, came with Factory SRT headers, bolts, catted mids, and SRT Xpipe, i also have a brand new Flowmaster SRT thunder series exhaust systen to install to.. My question is do i need O2 extenders, and do i need a a custom tune to run this system on my 2010 R/T 6SPD :disgust: