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Old 02-07-2013, 12:50 PM   #137
Scooby Newbie
Member#: 340745
Join Date: Dec 2012
Location: Wellsboro, PA
2002 impreza wrx


Originally Posted by RingU View Post
what do you mean by losing the boxer rumble with equal length? I used to have headers + up pipe combo (not sure what brand) and they made the car sound way louder.. is that what they're talking about? Sry, Newbie here.
equal length headers will make your car lose the boxer rumble. were as unequal length will allow you to keep the boxer rumble.

unequal lenth = boxer rumble faster spooling (so i read on another thread by unabomber)

equal length = lose boxer rumble but gain high end power.
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