Originally Posted by viperbl Its not lean, in fact, its a little on the rich side at the top end if anything. Sorry, to me "lean" means low A/F ratio.
2003 RS6 MTM, RNS-E, 2007 Q7 and 1999 A4
Originally Posted by vr430 Sorry, to me "lean" means low A/F ratio. Lean refers to low fuel to air mixture So for example 16:1 AFR would be lean And 10:1 AFR would be rich
Custom VAG Tuning on RS6's - Email rich at vipertuning.com for details
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