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Old 01-28-2005, 03:45 PM   #1
Scooby Newbie
Member#: 22211
Join Date: Jul 2002
Default AFR /w new uppipe

I just installed a new uppipe.
How will AFR be after installing a new uppipe, if i'm using MAP mapping.
Will it be richer or leaner.? If there is a leak how will that affect my afr reading.
Anyone know how to lisen to an leaky uppipe, my engine is nosie with bov and short intake.
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Old 01-28-2005, 07:37 PM   #2
Scooby Specialist
Member#: 79222
Join Date: Jan 2005
Chapter/Region: W. Canada
Location: Canada BC
'09 STi 297.5 WHP


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