ignition amplifier colour(black , bule , red) RACING MAX SPEED ... turbo and non turbo engines. RACING MAX SPEED Ignition Amplifier features:1, to enhance the engine low-, medium ... speed torque; 2, full-speed zones to enhance the engine horsepower, fuel-saving ... ; 6, heat resistance, waterproof design. Universal ignition amplifier engine 3 4 6 cylinder (Black , bule ,red)