question for the eggspurts!! Why don't more people on here use turbo beanies??? A turbo blanket improves the performance of your turbo by keeping "the hot side hot." In keeping the exhaust gases within the turbocharger hot, turbocharger efficiency is improved. As you may not know, the hotter a gas is, the more expansive it is. Within a contained system of a specified size, the more expansive a gas is, the greater the pressure derived and thus, the greater the flow of gas to escape the containment. Therefore "promoting better flow". Would this also slightly help under bonnet temps too?