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My wife’s Yukon Denali has a very similar variant of 6.2 to the L99… 100K on it and no issues, my old SS had 70K with no issues when I sold it, and the current SS is a baby at only 4500 miles so it’s obviously issue free as well. That’s all my experience with AFM, and I’ve not had any issue at all. I religiously change oil at 5,000 miles or less though.
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ABM #2399 2SS/RS:SOLD
ABM #93 2SS/RS Black Rally stripes, Titanium Interior 4,000 miles: GM GFX side skirts and diffuser waiting on paint, GM dovetail, GM heritage, RPI ZL1 style splitter.
‘87 IROC-Z Iroc blue. all original unmolested with 50K miles.
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