DEI Turbo Shields are designed to decrease lag and reduce engine bay temperatures. DEI offers 4 shield styles available for T3, T4, T6, 1G/2G DSM, Evo 3 16G and Subaru turbos. Please review ALL information and specs before purchase. Fitment: Titanium: Gen 3 Silicone: Onyx: Ultra 47: T3 010140 010244 010179 010172 T22 (DSM/Suby) 010165 - 010161 - T4 010144 010241 010181 010173 T6 010146 010238 010010 - * 1G/2G DSM and Evo 3 big 16G will use the T22 style turbo shield as will most WRX/STi. Read more below to confirm sizes. Titanium: Titanium Turbo Shields include a hi-temp rated silica insulation under the tight outer layer for extra added protection against extreme turbo-generated heat. Gen 3 Silicone: The Gen 3 titanium shields are coated with a silicone outer layer with multiple stainless steel and silica inner layers. Without a doubt the strongest, most heat resistant shield available! Onyx: DEI Onyx Turbo Shields use an exclusive combination of premium heat resistant textiles for a black carbon fiber look. Ultra 47: Ultra 47 shields are made from a tri-layer mix of an aluminum impregnated glass fiber outer shell with a high-temperature insulating mat core and silica glass blend liner. Double stitching and heavy duty capped anchor points make this turbo shield look great and perform even better.More Info:Turbo Shields solve the problem of extreme underhood heat, stops heat damage of painted or carbon fiber hoods and helps turbos spool faster.Features:• Direct Heat Resistance: 1800°F• Radiant Heat Resistance: 2500°F• Riveted anchors incorporated to secure shield• Double reinforced seams inside & outsidePurchase Includes:(1) ShieldImportant:This Turbo Shield is not flammable. However, if any flammable fluids are introduced to it, conditions may be suitable for a flame to be produced. Please take all necessary precautions to insure that the oil supply line and all fluid fittings are in proper working order, sealed and without leaks. DEI is not responsible for any damage caused by fluid contamination.Also Important:This shield is not designed to be removed after it has been through heat cycles. After the fibers have been heated they lose their initial flexibility. This does not reduce the thermal properties of the shield. Be aware of this before you decide to remove the shield.Measuring your Turbo Size:DEI Turbo shield sizes are based on two basic measurements. The first measurement is the circumference of the turbo not including the flange. The second measurement is the width of the turbo at it’s widest point not including the flanges. After measuring, refer to the chart below to find the correct shield. Turbo Measurements Chart: TURBO: CIRCUMFERENCE: WIDTH: T22 15" 2.25" T3 15" - 16" 2.5" T4 20" - 22" 2.75" T6 26" 3.75" AFTERMARKET AND OEM TURBOS MAKE MODEL NOTES TURBO SHIELD SIZE Borg-Warner S300 < = 14cm2 turbine housing T3 S300 > = 16cm2 turbine housing T4 S400 T4 Garrett GT35R with T3 turbine housing T3 GT35R with T4 turbine housing T4 GT37R T4 GT42/GT45 a/r 1.01-1.4 for tight fit T4 GT42/GT45 a/r 1.01-1.4 for loose fit T6 GT47 ~3" short on length T6 Precision, TiAL, Turbonetics All with T3 V-band T3 Mitsubishi MHI TD04/TD05 Turbochargers - internally gated (Talon, Eclipse, Laser) T22 Subaru MHI TD04/TD05 Turbochargers - internally gated (Impreza WRX, STI) T22 IHI VF39/VF43 Turbochargers - internally gated (Impreza WRX, STI) T22 OEM '02-'07 WRX/STI T22 Blouch EVO 3 big 16 G T22 OEM DIESEL TRUCK APPLICATIONS MAKE YEAR ENGINE TURBO TURBO SHIELD SIZE Dodge 1994 - 2002 5.9L Cummins Stock Holset T3 2003 - 2007 5.9L Cummins Stock Holset T3 2007.5 - 2010 6.7L Cummins Stock Holset T4 2001 - 2004 LB7 6.6L Duramax Stock IHI T3 2004.5 - 2010 LLY, LBZ, LMM 6.6L Duramax Stock Garrett T4 Ford 2003 - 2007 6.0L Power Stroke Stock Garrett T4 See more DEI Design Engineering Products