Torque Solution Throttle Body Hose Coupler Subaru WRX 2002-2007 / STI 2004-2021 | TS-SU-305 Impreza_2012-2016 The stock STI mounts are

The stock STI mounts are made of a softer material which can make spirited driving feel vague and sloppy

including those with upgraded turbochargers

Stainless Steel braided lines do not expand under pressure like the OEM rubber lines

The Mishimoto X-Line performance aluminum radiator for the Subaru WRX and STI is designed with a larger 3 row core to maximize cooling efficiency

Torque Solution Throttle Body Hose Coupler Subaru WRX 2002-2007 / STI 2004-2021 | TS-SU-305 Impreza_2012-2016 The stock STI mounts arePart #: TS SU 305 Torque Solution Silicone Couplers are made from high quality silicone wound 5 layers and 5mm thick. Perfect for high boost applications to withstand swelling and bursting. This is a direct fit of the OEM Subaru coupler. It will work with the OEM or aftermarket TMIC's. 5 Layer Silicone 5mm Wall Thickness Street and track torture tested Limited Lifetime Warranty Includes: Torque Solution TB Hose 2 x Breeze Liner Worm Gear Clamps