I agree you could for sure do it even cheaper than $5500 with different brand stuff, I was pricing by the ones in the Steeda car..That's just what I had pulled from some of their links.
I also went with Lund's E85 tune so it includes the N gauge, I don't know what steedas pricing is.
Just going with a set of BBK long tubes and a $120 x pipe and you are in the $700 range for exhaust. Wheels and tires could obviously be found much cheaper as I was just looking at list price.