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328 e46 exhaust valve
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<blockquote data-quote="bikerz" data-source="post: 20314" data-attributes="member: 15304"><p>hi, i just plug out the hose for exhaust valve. after test drive, i can say my pick-up increase while my mid-end power decrease. have anyone done the experiment before? is it true it reduce mid-end or my psychology thinking only?bcoz, according to e46fanatics.com, the valve is only to reduce noise. the prove is after market exhaust doesn't have valve. so why is it i feel my mid-end power reduce? or do i need to wait for my ECU to calibrate with the exhaust??</p></blockquote><p></p>
[QUOTE="bikerz, post: 20314, member: 15304"] hi, i just plug out the hose for exhaust valve. after test drive, i can say my pick-up increase while my mid-end power decrease. have anyone done the experiment before? is it true it reduce mid-end or my psychology thinking only?bcoz, according to e46fanatics.com, the valve is only to reduce noise. the prove is after market exhaust doesn't have valve. so why is it i feel my mid-end power reduce? or do i need to wait for my ECU to calibrate with the exhaust?? [/QUOTE]
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328 e46 exhaust valve
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