Paint it white.
Wasn't the old hot rod trick to paint the underside of the intake manifold white to help reflect the radiant heat?
Also is the air even in the tube long enough to soak up the heat?
You would need to do a comparison with a temp probe in the airstream right by the throttle body to see if the actual air temps are different. The factory IAT is probably close to the filter right? (Sad I don't know where it is on my own truck) I think a reading right before the throttle body would give the best reading to see if the air is even soaking up the heat.
Just my 2 cents.
Wasn't the old hot rod trick to paint the underside of the intake manifold white to help reflect the radiant heat?
Also is the air even in the tube long enough to soak up the heat?
You would need to do a comparison with a temp probe in the airstream right by the throttle body to see if the actual air temps are different. The factory IAT is probably close to the filter right? (Sad I don't know where it is on my own truck) I think a reading right before the throttle body would give the best reading to see if the air is even soaking up the heat.
Just my 2 cents.