Exhaust Noise
#1
Exhaust Noise
Hey guys I have a 02 superduty with the 5.4 with a weird noise. The noise sounds like and exhaust leak, but I have replaced the manifold, studs, and gaskets with ford parts. When I crawl under the truck the noise sounds like it is actually inside the down pipes. The truck did have the stock muffler cut out and a pipe welded in. I was wondering if the lack of back pressure could be causing the noise, or do I have another problem? Thanks for the help.
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