STAGE 1 KIT. Mini Spares bolt-on performance kit for 998 and 1098 engines. Gives 20% more power and 12% more torque. Kit includes - twin box RC40 exhaust system, Maniflow Cooper Freeflow exhaust manifold, Torquemaster inlet manifold, K&N air filter element, carburettor needle, exhaust fitting kit, and gaskets for the carburettor and manifold.