Quote:
Originally Posted by shovel
I have yet to ever see one single dyno sheet demonstrating a reduction in torque resulting from a reduction in exhaust restriction. I have seen countless dynos demonstrating an increase across the board, with a naturally greater increase at higher rpm's - but still a net increase at low rpm's as well.
When can we put that old story to rest?
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I agree. Although, there is an error that can be gained with homogeny, especially japanese, it can be attributed to backpressure being to open. A small engine reveals this more than others. Some are just horribly hopeless without exhaust system somewhere in OEM math dimensions.
at 2.7 liters, it shouldn't matter. You may not even notice anythintg but vibrations of deeper fires. the same engine..opened, is all that is...
The cai helps everything, even a heat mixer version for carbs. Exhaust can stay one pipe or two, or headered, there is so many variables...