Down pipes?
#3
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I don't see why it wound help. It's the stock muff and cat that restricts. Not the downpipe. Plus to change just the downpipe is a pain in the *** cause the rest of the pipe needs to slide back to get it off then back up onto the downpipe to get it back on. Usually not that much play in the system. Seems pointless to me
#4
#5
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