Home Roush 421827 Cold Air Kit (Mustang EcoBoost 15-17)

Roush 421827 Cold Air Kit (Mustang EcoBoost 15-17)

NOW $1,568.99
Or 4 interest-free payments of $392.24
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Roush 421827 - 2015-2017 Ford Mustang 2.3L Cold Air Kit Air Induction System - Reusable Oiled Filter - Plastic - Black - Ford EcoBoost 4-Cylinder - Ford Mustang 2015 - Kit 2015 Mustang I4 Cold Air intake ROUSH's newly-designed cold air intake for the 2015-2017 2.3L I4 Ecoboost engine brings staggering performance increases that can be achieved with an installation that takes under an hour with no calibration required!The ROUSH EcoBoost Cold Air Intake replaces the restrictive stock air intake, unlocking latent power.

There's no need for a custom tune, as this CAI system was engineered and designed to work with the completely stock 2.3L I4 engine! Paired with Ford's innovative EcoBoost engine, our ROUSH Cold Air Kit feeds cooler, denser air to the Turbo, increasing potential power output by up to 29 RWHP and 27 ft-lbs.

RTWQ! Our kit is 74% less restrictive than the stock system at peak horsepower. Best of all, this system will not void your factory warranty! The filter is washable, re-usable and requires no oiling.The kit utilizes all factory emissions and vacuum lines.

Factory mounting locations and hardware are utilized to allow for quick and easy installation. Install Time : 1 hour Product Category Type : Cold Air Kits

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

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