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Question: Does anyone have a video or a link to a thread that shows before and after dyno testing of a 2.5 > 3 inch exhaust? Because I keep reading people say that it doesn't make a difference. But I have yet to see any hard evidence. Its like someone one day decided to say this and it just caught on.
Having said that, I personally would not use any 2.5 inch exhaust on any application producing more than 500 whp. I don't think a dual 2.5 inch exhaust is enough at that point. You might be able to make X amount of power, but I think upping to a 3 inch at that point would provide worhtwhile gains. But still, I'd like to see some dyno results because word of mouth isn't enough for me...no offense anyone.
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