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quick question whats the best way to do dual exhust?
1. Replace the exhust manifiolds on each side with each on having its own cat, muffler and o2 senor?
2.Put on mew manifolds, let that go into one pipe for the cat and muffler then split into two pipes?
Its an 89 D150 Le, need to know where i can parts and what brands you guys have had luck with.
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