Thread: 3 Dynojet pulls
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      01-06-2010, 03:02 PM   #9
xxe92xx
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Drives: 08 M3
Join Date: Oct 2008
Location: Milwaukee, WI

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Quote:
Originally Posted by John@BMW View Post
lots of AFR readings are incorrect because of placement of the sensor in the exhaust.

Those tail pipe sniffers are not the most accurate readings. Its best to have a wideband o2 sensor before the primary cats. Any other way is a waste of time IMO.
yeah i agree sniffers are pretty shitty, but i didnt want those "honda kids" messin with my shit i juss wanted to be in and out..

is that "choppyness" normal as the rpm's increase? also i heard alot of people dont dyno in the winter, could that be another reason for the low numbers?