This aFe intake tube upgrade allows those who already own the Stg 1 to upgrade to Stg 2. This replaces the stock restrictive plastic tube with a larger tube, allowing more airflow.
*Note: Tube upgrade kit works with both factory airbox and both Stage 1 afe intake kits.
-Direct fitment -Limited Lifetime Warranty -Improves MPG by improving airflow -Increases horsepower by up to 10hp in the upper range -Durable Urethane Couplers
2000-2006 BMW M3
