Garrett GT1749S Stage 1 PowerMax Twin Turbo Upgrade Kit – 2013–2017 Ford 3.5L EcoBoost | Direct-Fit Drop-In Upgrade | Increased Compressor Capacity

The Garrett GT1749S Stage 1 PowerMax Twin Turbo Upgrade Kit for the 2013–2017 Ford 3.5L EcoBoost is a direct-fit twin turbocharger upgrade kit engineered to replace the factory EcoBoost turbochargers with Garrett's GT1749S PowerMax units — providing increased compressor capacity, improved boost response, and higher power potential compared to the factory turbos while retaining the EcoBoost's twin-turbo configuration and direct-fit installation. The Ford 3.5L EcoBoost is one of the most popular and widely modified turbocharged engines in the North American market — used in the F-150, Taurus SHO, Explorer Sport, Flex, and other Ford platforms — with a large and active performance community that has extensively developed the EcoBoost's power potential. Garrett is the most respected turbocharger manufacturer in the world — the OEM turbocharger supplier for a wide range of performance and commercial applications and the aftermarket turbocharger brand trusted by professional engine builders and performance enthusiasts worldwide.

Key Features:

• GT1749S PowerMax turbochargers — Garrett's GT1749S PowerMax compressor wheel upgrade — increased compressor wheel diameter and optimized aerodynamics compared to the factory EcoBoost turbo compressor — more airflow capacity for increased power potential
• Stage 1 specification — Garrett's Stage 1 PowerMax kit — the entry-level Garrett upgrade turbo for the 3.5L EcoBoost — designed to work with the factory ECU tune and supporting modifications for a meaningful power increase over stock
• Twin turbo kit — complete set of two GT1749S PowerMax turbochargers — correct for the 3.5L EcoBoost's twin-turbo configuration — both turbos upgraded simultaneously for balanced boost delivery
• Direct-fit installation — engineered for direct-fit installation on the 2013–2017 Ford 3.5L EcoBoost — uses the factory turbo mounting flanges, oil feed/return connections, and coolant connections — no custom fabrication required
• Improved boost response — the GT1749S's optimized compressor aerodynamics improve boost response compared to the factory turbos — faster spool and more consistent boost delivery across the RPM range
• Garrett quality — manufactured by Garrett, the most respected turbocharger manufacturer in the world

GT1749S PowerMax — The Technology:

Garrett's PowerMax turbocharger upgrade program uses a billet machined compressor wheel with optimized aerodynamic blade geometry — a larger diameter and more aggressive blade profile than the factory compressor wheel that increases the turbo's airflow capacity (measured in lb/min) without requiring a larger turbine housing or significant changes to the turbo's physical envelope. The result is a turbocharger that flows more air than the factory unit — supporting higher power levels — while retaining the direct-fit installation characteristics of the factory turbo. The GT1749S designation indicates the specific compressor and turbine wheel sizing used in this PowerMax upgrade — engineered specifically for the 3.5L EcoBoost's flow requirements and power targets.

Stage 1 — What It Means for the 3.5L EcoBoost:

Garrett's Stage 1 PowerMax kit is the entry-level upgrade turbo for the 3.5L EcoBoost — designed to provide a meaningful power increase over the factory turbos while remaining compatible with a wide range of supporting modifications. Stage 1 is the correct starting point for 3.5L EcoBoost owners who want a genuine turbocharger upgrade from Garrett without the more extensive supporting modifications required by higher-stage kits. A professional ECU tune is strongly recommended after installing the Stage 1 PowerMax kit to correctly calibrate boost targets, fuelling, and ignition timing for the upgraded turbos' increased airflow capacity.

3.5L EcoBoost Applications:

The Ford 3.5L EcoBoost twin-turbo V6 was used across a wide range of Ford and Lincoln vehicles from 2013–2017 — including the F-150 (2nd generation EcoBoost), Ford Taurus SHO, Ford Explorer Sport, Ford Flex EcoBoost, and Lincoln MKS/MKT EcoBoost. The GT1749S Stage 1 kit is engineered for the 2013–2017 3.5L EcoBoost specification — verify your specific vehicle and model year before ordering.

Specifications:

• Brand: Garrett
• Part Number: GRT911984-5002S
• Model: GT1749S PowerMax
• Stage: Stage 1
• Configuration: Twin turbo kit (2 turbochargers)
• Installation: Direct-fit
• Application: 2013–2017 Ford 3.5L EcoBoost (Gen 2)
• Weight: 28.3 lbs (shipping weight — complete kit)

Fitment Information:

• 2013–2017 Ford F-150 — 3.5L EcoBoost (Gen 2)
• 2013–2017 Ford Taurus SHO — 3.5L EcoBoost
• 2013–2017 Ford Explorer Sport — 3.5L EcoBoost
• 2013–2017 Ford Flex EcoBoost — 3.5L EcoBoost
• 2013–2017 Lincoln MKS / MKT — 3.5L EcoBoost
• Direct-fit — uses factory turbo mounting flanges and connections
• Note: Verify your specific vehicle, model year, and 3.5L EcoBoost generation before ordering — the 3.5L EcoBoost was updated across model years and generations. A professional ECU tune is strongly recommended after installation. Supporting modifications (intercooler upgrade, intake, exhaust) are recommended to maximize the Stage 1 kit's power potential. Professional installation by an experienced forced induction specialist strongly recommended.

What's Included:

• 2x Garrett GT1749S PowerMax turbochargers (complete twin turbo set)
• Refer to Garrett's product documentation for complete kit contents and any additional hardware included

Installation Notes:

• Professional installation by an experienced forced induction specialist strongly recommended — turbocharger replacement on the 3.5L EcoBoost requires correct oil feed/return line connection, correct coolant line connection, correct turbo mounting torque, and a pre-oiling procedure before first start
• Pre-oil the turbochargers before first start — crank the engine without starting (disable fuel/ignition) until oil pressure is confirmed before the first fired start — running a new turbo without oil pressure on first start will cause immediate bearing damage
• Use fresh, high-quality full-synthetic engine oil and a new oil filter before installing the new turbos — contaminated oil from the previous turbos can damage the new bearings
• Inspect and clean the oil feed lines before installation — any debris or carbon deposits in the oil feed lines must be removed before connecting to the new turbos
• A professional ECU tune is strongly recommended after installation — the GT1749S PowerMax turbos' increased airflow capacity requires correct boost targets, fuelling, and ignition timing calibration to safely and effectively use the additional power potential
• Allow the turbos to reach operating temperature before subjecting them to full boost — follow a break-in procedure for the first several heat cycles

Why Garrett?

Garrett is the most respected turbocharger manufacturer in the world — the OEM turbocharger supplier for a wide range of performance and commercial applications including Formula 1, Le Mans, World Rally Championship, and major OEM performance vehicles. Garrett's aftermarket PowerMax and performance turbocharger lineup brings that OEM engineering expertise to the performance aftermarket — direct-fit upgrade turbos engineered with the same precision and quality as Garrett's OEM products. For 3.5L EcoBoost owners who want a genuine Garrett turbocharger upgrade from the world's most respected turbo manufacturer, the GT1749S Stage 1 PowerMax kit is the correct choice.

Perfect For:

• 2013–2017 Ford 3.5L EcoBoost owners (F-150, Taurus SHO, Explorer Sport, Flex) who want a direct-fit Garrett GT1749S PowerMax twin turbo upgrade for increased compressor capacity, improved boost response, and higher power potential over the factory turbos
• 3.5L EcoBoost builds where the Stage 1 PowerMax kit is the correct entry-level Garrett turbo upgrade — compatible with a wide range of supporting modifications and a professional ECU tune for a meaningful, reliable power increase
• EcoBoost performance enthusiasts who want the confidence of genuine Garrett turbocharger engineering — the same brand that supplies OEM turbos to the world's most demanding performance applications

Note: Professional ECU tune strongly recommended after installation. Pre-oil turbos before first start. Use fresh full-synthetic oil and new filter before installation. Inspect and clean oil feed lines before installation. Professional forced induction specialist installation strongly recommended. Verify 3.5L EcoBoost generation and model year before ordering. Supporting modifications recommended to maximize power potential.