Fitment Information Subaru Impreza WRX & STi (2008, 2009, 2010, 2011, 2012, 2013, 2014) Front Mount - 400-500hp Capacity Note: Extra pipes are included for STI models. Requires aftermarket Blow-Off Valve. This intercooler kit will retain the factory fog lights for both STI and WRX. Specs & Features Direct replacement for the factory intercooler Twice the cooling performance of OEM Competition core with aluminum end tanks Lower pressure drop than OEM Bolt on installation What's in the box? 7 x pieces polish aluminum pipe set up 7 x polyester reinforced High temperature silicone hose 1 x overflow reservoir 1 x reinforcement beam bracket 14 x t-bolt clamp 1 x project intercooler Specs Bar & Plate Design for Better Cooling Efficiency Max Horsepower Capacity: 400-500+ HP Core Length: 25" Core Height: 9.5" Core Thickness: 3.5" Inlet / Outlet Size: 2.5" End to End Length: 35" Rev9 Intercooler Kits are designed for those seeking the most performance potential from their cars.  Made to be direct replacements (unless otherwise noted), yet offers twice the cooling capability at a lower pressure drop than OEM to increase the cool, dense air being forced into the motor which generates more power and torque at the same boost level.