The price point was very good on the 350 platform from what I remember. Cheaper than most X pipes out there. I think the only one cheaper was the MBRP. I remember hearing raves about that particular brand, "Shifteck", the sound and quality of the pipe. Only thing negative I remember hearing...
A lot of guys used Shifteck on the 350 platform. I used the Lethal Performance. I'm sure you would be happy with either as they would likely sound very similar to any X Pipe designed for the 500 for that matter. Good luck.
I'm sure this thread did not help the price of that 350 at all. No telling how many people called an inquired about it raising the price back up to near MSRP, lol.
Looks like a great deal to be had on this car, probably could get it cheaper with more negotiations. If I had the extra bread, wouldn't think twice about scooping it up.