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I wanted to know is it better to have a mandrel bent 2 1/4 exhaust or a crush bent 2 1/5 exhaust when you have a 1.8 going for 200whp?
Anyway, Mandrel FTW. Keep that exhaust flowing quickly. bigger with crush bends will make it flow slower and have added backpressure/crappier flow from all the turbulence and bottle necking caused by the crush bends.
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