Anybody know if they make after market exhaust systems for the F550, like they do for our trucks and the F250s and 350s? A friend of a friend has a F550 tow truck that he wants to modify a little and was looking for an exhaust system but could not find anything listed. I know there is some sort of difference with the frames of the 250 and 350 compared to the 450 and the 550, could this be the reason? Is there something in the way that is not on the lower models? Just wondering if anyone knew why. Thanks. (I feel a little dirty asking F questions on our site, forgive me TDR for I have sinned
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