Product Summary

4.00" Outside Diameter, Carbon Fiber

    Rebates Available

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    Key Specs

    MFG. Part #CI100038
    BrandAPR
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    APR CI100038 Details

    The APR Turbocharger Inlet System outflows the factory components by up to 45%, and jumps to 60% when adding the APR Intake Filter. This is firstly achieved through elimination of the most critical restriction in the entire intake system, the turbocharger inlet pipe. Because of this restriction, no intake airbox / filter design can physically match the gains achieved by upgrading to the APR Turbo Inlet System alone. This inlet is the first step one should take when upgrading their intake system and paves the way for even more gains by adding the optional intake filter.The APR Turbocharger Inlet System uses a massive 4" carbon fiber inlet tube that attaches to the factory airbox, or the APR Intake Filter System. Attached to the carbon fiber tube is a massive 4" cast aluminum inlet which is organically shaped to retain the largest possible cross-sectional area within the pipe all the way to the inlet of the turbocharger's compressor cover. Despite the visually odd shape, keeping the cross-sectional area as large as possible is the key to the pipe's performance gains, and greatly outflows smooth looking continuously tapering designs.Interlocking adapter rings form a port-matched ideal entrance to the turbocharger, while larger rings (sold separately) provide port-matched support for even larger hybrid turbocharger upgrades. A thick stainless-steel heat shield protects the pipe from the hot turbocharger manifold, and an external stainless PCV pipe provides proper PCV placement without impacting the inlet's design.

    Features:

  • Massive cast 4" turbo inlet
  • Massive 4" carbon fiber tube
  • Work with the factory intake or APR intake filter
  • Works with various turbos with the interchangeable adapter rings
  • Heat shield included
  • Massive flow gains (45% over stock and 60% over stock with the APR Filter)
  • Increased horsepower and torque
  • Better throttle response
  • Enhanced engine sound
  • All mounting hardware included
  • Rebates

    Holley October Promo 10% Off Select Parts Sale

    Holley October Promo 10% Off Select Parts SaleHolleyOctoberPromo10%OffSelectPartsSale

    Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    APR CI100038 Specifications

    KEY SPECS
    MFG. Part #CI100038
    BrandAPR
    GENERAL
    GTIN Code810009930808
    Sold in QuantityKit
    Outside Diameter4.00"
    Material TypeCarbon Fiber
    InsulatedNo

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