HKS Air intake duct GR86 BRZ 70999-AT003

Although it is a genuine replacement layout, the opening has been significantly enlarged to reduce intake resistance.

■ Features

• The one-piece blow-molded structure has no internal seams, reducing intake resistance.
• In order to reduce resistance at maximum flow rate, the narrowest part is approximately Φ87.5mm compared to approximately Φ50mm for the stock.
• Since it has the same layout as the original, it does not absorb rainwater and can be used safely on the street.

■Intake duct flow bench comparison