CTS Turbo Blankets isolate the heat produced by your T4 flanged turbocharger with the purpose of reducing turbo lag, cooler air intake temperatures, protecting and prolonging engine components, and giving a boost in horsepower. In keeping the heat of the exhaust gases contained within the hot side of the turbocharger and away from the cool side of the turbocharger and the intake path, more oxygen per unit volume reaches the engine, and thus, more power.nnCTS Turbo Blanket Heat Tolerance:nnInterior Surface:nMax Temperature Rating: 2000 Deg FnContinuous Use Limit: 1800 Deg FnnExterior Surface:nDirect Contact Limit: 600 Deg FnRadiant Heat Limit: 1100 Deg F