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Improved Driving Experience
Forged steel design adds adjustment to the arm without weight penalty vs
Heat shield prevents idle surge
CERAMIC PAD DETAILS:
a pair of worm clamps
HKS Cold Air Intake Full Kit - 2015-2021 Subaru STI (VA / 4D EJ257) PDM_air-intake-filter-replacements Improved Driving ExperienceHKS Cold Air Intake Full Kit 2015 2021 Subaru STI (VA 4D EJ257) Replacing the Factory Intake Restriction HKS intake systems replace the restrictive factory airbox and intake tube with a larger, smoother flow path designed specifically for each engine and turbo configuration. On turbocharged applications the intake feeds the compressor inlet restriction here reduces available air volume and limits the turbocharger's ability to build boost efficiently.