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02-18-2014, 06:29 PM
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#16 |
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1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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Well the Borla is a straight through glass pack type muffler so the back pressure should be the same on both pipes. I have a feeling i didn't put the connection together tight enough and was causing some vibration through the exhaust causing the knock sensor to pull timing. It was mostly in the lower RPM range.
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