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old blue · 03-06-2011, 05:22 PM

considering o2 sensor spacers to lean afr some. wondering if i should do both or just the up stream o2. not looking for much but every bit helps.

03-06-2011, 05:22 PM	#1 (permalink)
old blue EcoModding Lurker Join Date: Jan 2011 Location: oregon Posts: 13 old blue - '98 chevy metro lsi 90 day: 39.79 mpg (US) Thanks: 1 Thanked 0 Times in 0 Posts	o2 sensor spacers ? considering o2 sensor spacers to lean afr some. wondering if i should do both or just the up stream o2. not looking for much but every bit helps.