aFe 54-81172 Review: aFe 54-81172 Stage 2 Sealed Cold Air Intake System. I have no performance or MPG data as of yet. I installed on a 2010 tundra 5.7LIn terms of sound, little change when cruising or idling but step on the gas and there is a pretty loud growl in the cab. There are various sound files and videos floating around but I don't think they really tell you what it sounds like.Install: Instructions are nearly useless. Their only utility is that they give you a basic progression of steps. A couple key points when installing (based on my newbie experience):(1) ... Read more »
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