Tomei Exhaust Manifold (Unequal Length) - Subaru WRX FA20DIT 2015+ AH03 Increased rigidity and the use

Increased rigidity and the use of impact-absorbing materials are the major advances found in the Pro-ADV

(1) Evap Flange (Anodized Black)

The Pro 5R air filter uses five layers of progressively finer mesh cotton gauze media to provide maximum airflow for best performance results

silicone connector (larger diameter connector for use with Skunk2 throttle bodies or similar sold separately)

Tomei Exhaust Manifold (Unequal Length) - Subaru WRX FA20DIT 2015+ AH03 Increased rigidity and the useEvery flaw of the OEM header has been addressed and improvised during the development of the Tomei header, resulting in power gains you can feel throughout the powerband of the car. Unequal length runners on the headers achieve the unique boxer engine rumble. The OEM headers restrict air flow resulting in loss of power and efficiency. Tomei headers do not restrict air flow resulting in an increase in power and efficiency. Unlike the OEM headers, Tomei