Snorkels are an excellent way to protect your 4 wheel drive's engine. The higher air intake gives you the combined benefits of cooler & cleaner air intake, safer water crossings and increased airflow for improved performance.Ironman Snorkels are perfect for the value-concious 4WDer. Available for a limited number of applications, 4WDs fitted with Ironman Snorkels benefit from increased airflow to the engine and a raised air intake to minimse the chances of water intake.