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Discussion Starter · #1 ·
Looking to put a Flowmaster Super 40 on my '92 1500 350. I want to dump it BEFORE the axle, so what exit arrangement should I go with?

3"IN/Dual 2.5" OUT



or something else?

And about how much pipe after the muffler?

I want to maintain sufficient backpressure so I don't lose my low end. Let me know, thanks!
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