Mustang GT Axle Back Test - Ford Racing FR500S M-5230-S

[adalemagno]

Sounds great man! Just ordered a pair yesterday, Cant wait to get em! Thanks for the post!

[gdahl2]

I want to thank you for all of your Mustang muffler video's, It made my muffler endeavor easier. Great job in comparing the mufflers the same way every time....

[gdahl2]

I've had Frpp stingers, frpp gta's, frpp gtb's. corsa xtreme's and now frpp Kr-500's.

I think the 500's are the best sounding....

Gtb's are too quite

Gta's are louder but still too quite

Stinges sound good, but the drone is too much.

The Corsa sound great, too loud!!!

The KR's are not as loud as the corsa, Little bit of a drone, deeper sounding too.

[gdahl2]

NO hp improvement between the Borla or the Kr500 muffler... just a different sound,

[zx2escortt]

so what would it sound like if i got a borla stinger or maybe touring catback and replaced the borla muffler with the fr500s muffler? would it sound like this but gain more power because of the catback?

[gdahl2]

I just installed a set of KR's now I have to watch for cops setting at the park waiting for loud cars!

[steveclark625]

HI, are this more noisy than the stock mufflers (inside) , and did you know that it requires a tune if i use a performance chip (diablosport).

[grufmanbilab]

NO DRONE AT ALL



[gdahl2]

Are the m-5230-s a oem shelby gt 500 muffler. and is there any drone?

[gocars]

@gdahl2 the m-5230-s is what was used on the 08-09 shelby KR and also the FR500 race car. no drone at all. i have them on my 09 Bullitt.

[rdionne]

Yes the FR500S kit is the mufflers, and a little bit of pipe that connects to the flange after the rear axle.

[jlr7156]

Now is this just the mufflers? or is there other exhaust components?