Quote:
Originally Posted by fstlane
Is it advisable to still run an o2 sensor spacer on a catless header with OFT stage 2 or does the tune eliminate both P0171 and P0420 CEL codes? I'm installing a Borla uel header this weekend and want to try and eliminate any potential issues. Thanks again for the awesome work!
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I came here to ask this exact question. As soon as my front pipe arrives it's gonna be go time.