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      06-06-2013, 11:39 PM   #18
RedRabbit
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Drives: Z4 sdrive 30i
Join Date: Mar 2012
Location: LHC

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Finally finished my supersprint header/midpipe cat delete install. Now producing no CEL after a few days of trying to figure out the original O2 sensor configuration. If anyone does this, make sure to mark during removal whether it is bank 1 or 2 and upstream or downstream otherwise it will shoot off with CEL after CEL for multiple cylinder misfires. She now sounds great feeding into the Remus mufflers and pulls harder with a nice burble when letting off the throttle.
Appreciate 0