[IMG]https://www.f150online.com/galleries....cfm?gnum=8877[/IMG]recently bought a 98 f150 with 5.4 and duals. truck is nice and throaty at idle, and has nice roar without drone when on throttle and at speed.there are no name stamped on the old mufflers that are startin to leak, but there are some numbers.how would i go about finding the manufacturer of these mufflers just by those numbers? thanks for your help.

 

I would go to an exhaust shop in the area and ask them.