Reduce air intake resistance by replacing duct with a much larger opening

• A one-piece molded construction without internal seams was adopted, to reduce intake resistance.
• Aiming to reduce resistance at maximum flow rate, the narrowest section diameter is D87.5mm, while the factory diameter is D50mm.
• Due to the same layout as the factory unit, it does not absorb rainwater and can be used safely on the street.

■Intake Duct Flow Bench Comparison

*HKS in-house data

Vehicle	Model	Engine	Model Year	Code No.	Manual	Remarks
BRZ	ZD8	FA24	21/08 -	70999-AT003		Installation time: 2.0h Cannot be used in conjunction with the 2001-AT013 S/C kit.