to suppress the rising gear oil oil temperature by ◆ the cooling fin oil capacity up (about 400cc), it prevents the LSD trouble in advance. ◆ can be connected air-cooled oil cooler of M16 × P1.5 (sold separately). Lineup two colors of blue and silver ◆. The installation of this product requires the following Subaru genuine parts. Yes air breather cap 38354AA020 × 1 Yes gasket (differential carrier) 38353AA050 × 1 Yes gasket 803920050 × 2 (oil temperature sensor with def only)　 Right: mounting image to suppress the rising gear oil oil temperature by ◆ the cooling fin oil capacity up (about 400cc), it prevents the LSD trouble in advance. ◆ can be connected air-cooled oil cooler of M16 × P1.5 (sold separately). Lineup two colors of blue and silver ◆. The installation of this product requires the following Subaru genuine parts. Yes air breather cap 38354AA020 × 1 Yes gasket (differential carrier) 38353AA050 × 1 Yes gasket 803920050 × 2 (oil temperature sensor with def only)　 Right: mounting image