I recently bought a stock e30 m3 exhaust that goes straight from the headers to the tailpipe (2-in 2-out cat). This will go on an m30b34. Is anybody running stock e30 m3 exhaust? Any opinions on how it well it flows, sounds? Anybody running it on an m20, m30?
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You have an exhaust for a 4 cylinder and you want to behind one of the biggest 6 cylinders BMW built?sigpicComment
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It only looks a little lighter that a stock M20 exhuast but I never weighed the difference. Don't think the flow would be much better if any I have no idea. Hook it up and see otherwise if you can find an E32 750 exhaust cheap and if that fit, those tips look pretty nice and that exhaust should be with breathing.sigpicComment
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I was researching a M50 hybrid engine earlier and came up on some guy with a 2.9 M50 swap in his E30 M3 and he ran the stock exhaust, he said it was restricted but went with it to keep things quiet also said another similarly set up car with a more open exhaust made more power but near the top end cars were almost identical.sigpicComment
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