The aluminum intercooler hard pipe kit from AGP completely replaces the factory rubber hoses that can fail under high boost conditions. The 08-09 Evo X hard pipe kit from AGP relocates the factory blow off valve to the hot side tube gives the re-route a direct path back to the intake. The tubing is 2.5" diameter on the hot side and 3" diameter cold side featuring mandrel bent aluminum to ensure smooth flow. AGP also includes the required silicone couplers and hose clamps. This kit ensures the charged air coming out of the turbo charger has a smooth path into the engine while reducing the chance of a boost leak. The stock FMIC requires a 2.5" IC outlet coupler but an after market FMIC like the AGP unit requires a 3.0" IC outlet cuopler. Please choose accordingly below.