I wrapped mine with like 2" duct wrap. I think it would help if you were running a 1/4 mile and stopped each time and cooled it back down. But I took mine apart one day after I drove home from work and the inside of the intake was still hot. So Im not really sure it works or not. I think the problem was that it either needed more than one layer of wrap or I need to put a heat shield between the intake tube and the engine. I dunno just somethings to consider. It is like every 10 degrees lower makes 1hp though.