Some more info about the DEI T4 turbo blanket
Design Engineering’s new custom-fit DEI-010144 T4 Titanium Turbo Shield with LR Technology provides the ultimate means of reducing turbo lag while serving as a superior heat barrier, shielding and protecting engine components, hoods and painted surfaces. Made from pulverized lava rock, the T4 Titanium Turbo Shield, like the T3 Shield, can withstand 1800°F of direct heat thus reducing underhood temperatures. The result - cooler air intake temperatures for improved performance and a boost in horsepower. Stronger and tougher than other turbo blankets or shields, the T4 Titanium Turbo Shield includes a hi-temp rated silica insulation padding under the tight weave outer layer for extra added protection against extreme turbo-generated heat. Features and Benefits:● Custom fit for easy install● Ultimate thermal barrier reduces turbo lag ● Withstands 1800°F direct / 2500°F intermittent heat ● LR Technology prolongs lifespan of shield ● High tech custom carbon fiber look ● Improved durability against abrasions, temperatures and vibration ● Includes anchoring hooks for a secure fit ● Available in kit form or shield separately Turbo Shield Specifications: ID: 3" Circumference: 21"