Exhaust question

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greygoose

Junior Member
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?
 
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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?

I'm sure you meant crush bent 2.5 or 2 1/2..

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.
 
2 1/4 would be good for a 1.8l motor. if you were going turbo i would suggest 2 1/2. it's up to you though.
 
2.5 is a good size for a b-series, NA.
 
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