• GrimmSpeed Post MAF Hose Kit Red WRX 15-21 | 125023.2 - JDMuscleAir Intake and MAF Hosesgrm125023.2
  • GrimmSpeed Post MAF Hose Kit Red WRX 15-21 | 125023.2 - JDMuscleAir Intake and MAF Hosesgrm125023.2
  • GrimmSpeed Post MAF Hose Kit Red WRX 15-21 | 125023.2 - JDMuscleAir Intake and MAF Hosesgrm125023.2

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Post-MAF Hose Kit - Red

Fits: 15-21 WRX

$24500
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GrimmSpeed Post-MAF Hose Kit - Red
Fits: 15-21 WRX
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Other air intake and maf hoses for 15-21 WRX

Fitment

Please Note: GrimmSpeed lists 2015-2021 Subaru WRX No tuning required (per GrimmSpeed)
  • 2015–2021 Subaru | WRX

Description

Less turbulent air means better flow. Increased flow equals more power!

Per GrimmSpeed, its Post-MAF Hose Kit for the 2015-2021 Subaru WRX improves on the OE hose with two main features. First is a smooth inner surface that removes the pockets of the OE structural corrugated folds; the hoses are 4-ply silicone reinforced with an internal stainless steel wire running the length of each piece, so they stay flexible, are easy to install and won't collapse under vacuum. Second are tapered end portions that match the inner diameter of the OEM air box and turbo inlet, avoiding steps that interrupt airflow and create small vortexes. This listing is the Red hose kit (125023.2).

Methodology

GrimmSpeed notes the OEM rubber hoses require sharper angles and corrugated folds, contributing to uneven airflow with high and low pressure spots. The GrimmSpeed design uses a minimal curve transition and is perfectly smooth inside for more consistent airflow to the turbo, and the tapered portions further reduce turbulence.

Quick specs (per GrimmSpeed)

  • 4-ply stainless steel-reinforced silicone, extremely durable yet flexible (Red)
  • OEM fitment: easy install, no modification required
  • Seamless flow, CAD optimized design
  • High quality Breeze hose clamps included in every kit
  • No tuning required, even when coupled with the GrimmSpeed DRY-CON Panel Air Filter
  • GrimmSpeed logo

Fitment (per GrimmSpeed)

  • 2015-2021 Subaru WRX

GrimmSpeed provides a written install guide for the 15-21 WRX Post MAF Hose Kit.

Q: Which vehicles does 125023.2 fit?
A: GrimmSpeed lists the 2015-2021 Subaru WRX.

Q: Is tuning required?
A: No. GrimmSpeed states no tuning is required, even when coupled with its DRY-CON Panel Air Filter.

Q: Will the hoses collapse under vacuum?
A: GrimmSpeed reinforces each 4-ply silicone hose with an internal stainless steel wire so it won't collapse under vacuum.

Q: Which finish is this listing?
A: Red (125023.2).

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Warranty and Support

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