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      05-29-2012, 12:34 PM   #45
Malek@MRF
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Drives: E92 M3, E46 M3, F30, E30
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H-pipes are generally used to balance frequencies, not for power gains. They are only marginally better at controlling the rasp in the exhaust system. A true X merge collector is the most efficient and power producing method, especially compared to the H.

The Akra does not have the highest power producing Mid-section on the market. There are far more powerful systems out there. Akra has the H to eliminate the rasp.