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Which is the best exhaust size ?

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Old 09-14-2011, 11:51 AM
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it kopek
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Arrow Which is the best exhaust size ?
Hello all, I dont know if this question has asked before, I searched but didnt find the proper answer. Which is the best pipe size for my rx 8 headers back exhaust. Some say 76mm (3inch) is best others say this is too much for a N/A engine and 70mm is enough. Does anyone knows which is bestt ?
Last edited by Ogulcan; 09-14-2011 at 12:17 PM.
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Old 09-14-2011, 12:05 PM
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get edumuhcated! lol

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Old 09-15-2011, 11:30 AM
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Back pressure can help you see more torque at certain RPM's but is not needed. Our cars especially don't need any. It is a subject we have talked about a lot but that's basically what I've taken away from it all.
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Old 09-15-2011, 01:41 PM
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http://www.youtube.com/watch?v=KYscsuGlpas
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