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Sinister Diesel 4in ID x 10in Tall Universal 8-Layer Cotton Replacement Air Filter

$129.99 $168.99
-23%
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Sinister Diesel 4in ID x 10in Tall Universal 8-Layer Cotton Replacement Air Filter
$129.99 $168.99
$129.99 $168.99

The Sinister Diesel SD-CAI-FILTER is a high-capacity universal replacement air filter designed to fit Sinister Diesel Cold Air Intake systems or custom-fabricated intake setups. Measuring 10 inches tall with a 4-inch inner diameter (ID) silicone inlet, this filter is engineered to support significant airflow requirements for high-performance diesel and gas applications.

Built for durability and performance, the filter utilizes an 8-layer cleanable cotton media that provides excellent filtration efficiency without sacrificing flow. The assembly is reinforced with a signature Sinister Blue honeycomb filter guard to protect the media and maintain structural integrity under high vacuum.

  • Manufacturer Part Number: SD-CAI-FILTER
  • Inlet Diameter: 4-inch ID silicone flange
  • Filter Height: 10 inches
  • Filter Media: 8-layer cleanable cotton
  • Reinforcement: Honeycomb filter guard finished in Sinister Blue
  • Application: Replacement for Sinister Diesel intakes or custom builds

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