Originally Posted by wstar

I assume it's pretty effective. Most of the heat entering the G3 tubes seems to be on the upper segment (close to the TB), you can feel the heat on the bottom side of those, coming straight up from the exhaust manifold / header. Any insulation for the intake tube in that area has to help. Our Intake Air Temp sensors are just below that point (the MAS modules), so I don't think the difference actually shows on out IAT readings. If you shielded the lower part out in front of the radiator (from radiator heat) that might show up on IATs if it works, I never did yet.



My links were outdated, I fixed them:

Thermo-Tec's intake air tube shield for most of the coverage (measure and cut out some rectangular holes for the MAS blocks) + DEI Cool Tape for the MAS blocks and sealing up the other edge areas the wrap didn't cover.