Cold Air Intake?

I personally like the Airaid. Volant is nice but it causes a rich fuel mixture. AFE is always good. They used to make the 1st gen TRD intake.
 
The Volant intake makes the engine run rich because the diameter of the MAF tube is smaller than stock. That increases velocity across the MAF which makes the ECU think there is more air entering the engine. Some trucks throw a CEL when that intake is installed.
 
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