Subaru Upper Engine Cleaner EVO TRANSFER CASE to flow 25% to 70%

to flow 25% to 70% more air than the stock air cleaner housing flows from the vehicle manufacturer

Because DFV opens more quickly and easily on minor road imperfections

Aggressive induction sound

NISMO emphasizes heat resistance and adopted heat-resistant carbon which has been used in the brake shroud of SUPER GT GT500 class vehicle

Subaru Upper Engine Cleaner EVO TRANSFER CASE to flow 25% to 70%SKU: SA459 Subaru Upper Engine Cleaner SA459 is the only upper engine cleaning product that has been tested and approved by the factory to be used in Subaru vehicles, and included as a factory requirement in the maintenance and service schedule. It contains a powerful foaming agent to effectively clean the induction system and combustion chamber of the engine. Cylinder Cleaner Features & Benefits Specifically formulated for strong penetrating,