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      05-29-2012, 01:30 PM   #46
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Drives: 2011.5 e92 m3/Ford Raptor 6.2
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Originally Posted by Malekreza11 View Post
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.

Thats exactly what it did on my RPI exhaust, eliminated the rasp
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