Roush 421826 Cold Air Intake Kit for 2015-2017 Ford Mustang GT 5.0L V8 Coyote

Vehicle Fitment

• 2015-2017 Ford Mustang GT (5.0L Coyote V8, RWD)

Fitment Notes

• Cold air intake kit replaces factory air box and tube.
• Fits GT 5.0L V8 models only
• No ECU tune required if the included 85mm MAF insert is used; removing the insert for 105mm MAF bore requires custom tune.

Features

• Injection-molded air box tray and blow-molded intake tubes for high flow.
• Dual-layer washable dry filter (no oil required) for long service life.
• Provides up to +10 HP and +8 lb-ft torque gains without tune.
• Precise CAD design for perfect fit and factory-like finish.
• Includes 85mm factory-compatible MAF insert and option for 105mm bore with tuning.
• Easy install with no cutting or drilling.

Specifications

• Part Number: 421826
• Product Type: Cold Air Intake Kit
• Engine: 5.0L Coyote V8
• Power Gain (stock tune): Up to +10 HP / +8 lb-ft TQ
• MAF Options: 85mm (no tune) / 105mm (requires tune)
• Filter Type: Reusable dry dual-mesh media

Included Components

• 1x Air box with hood seal
• 1x Intake tube and clean-air duct
• 1x High-flow washable dry air filter
• 1x 85mm MAF insert (for stock tune); hardware and instructions included

Product Description

The Roush 421826 Cold Air Kit is designed specifically for the 2015-2017 Ford Mustang GT equipped with the 5.0L Coyote V8. Engineered to replace the factory intake system with a high-flow setup, this kit improves throttle response and adds measurable power gains while maintaining engine reliability.

Installation is straightforward, using factory mounting points and requiring no special tools or modification. With the included 85mm MAF insert, no tune is needed--simply bolt on and go. For maximum performance, you may remove the insert to enlarge the MAF bore to 105mm and pair with a custom tune. This kit is not compatible with non-GT or ROUSHCharged Mustangs and is for off-road sale in states requiring emissions certification unless a specific approval is documented.