Yes, I have. My data logs were posted, but the thread was removed after I was accused of being a z hater for posting iat temps. If I have time, I will pull them up and pm you.
Long story short, you suck in hot air. The tuning wall does not heat up on the interior even after reasonable time idling (obviously at 15 minutes plus, everything is heat soaked). Even them, I speculate that it's primarily due to hot air coming in.
Post maf tubes that were notably better insulators saw mild improvements, but not as
Much as youd expect given the extra insulation, lending credence to that theory.
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