Exhaust O/r X Pipe Question

[Speedy1210]

Wondering if anyone knew how bad the drone is with borla axle backs and also will I need a tune.

 

[earleys94gt]

What Engine, Manual/Automatic, brand of X-pipe, series of Borla's?

 

[Speedy1210]

5.0 automatic pypes xpipe and borla s type axle back

 

[earleys94gt]

http://www.svtperformance.com/forums/2011-2014-mustangs-354/884609-borla-s-type-plus-x-pipe.html

Video about halfway down the page. Should help give you some idea.