Thereaper
forum member
Yes, they are similar in design with the stingers, being as they are manufactured for Ford performance parts by Borla.. The difference however is the FR500S mufflers are built by Borla to Ford performance parts specifications in which they are designed to not produce that annoying cabin drone as compared to other straight thru muffler designs.. Therefore they are not the same exact thing..
I wouldn't recommend running a straight thru design with off road mid pipes either.. Much better off with either chambered or a baffle design axle back..
That $499.99 price is really expensive for an axle back that is no longer in production.. Heck I can remember when they were going for under $300.00 when Ninosport was still in existence lol.
I bought mine from Ninosport and payed $259 in 07. Look's like the price has gone up in 10 years.