More power and faster spool, without the lag of bigger turbos.

The KC Turbos Jetfire Stage 1 is a true Stage 1 drop-in turbo for the 2003–2007 Ford 6.0L Powerstroke. It's larger than stock but deliberately smaller than the Stage 1.5, PowerMax and Stage 2 turbos on the market. That size gives you quick spool, strong low-end response and more power, making it a great fit for owners who tow heavy and don't want the lag of a larger turbo.

Brand new, not rebuilt.

Every Jetfire Stage 1 is built from a brand-new Garrett OEM core with a new VGT solenoid. It's not a remanufactured or rebuilt turbo, and there's no core charge.

Upgraded where it counts.

The Jetfire uses a redesigned 61mm single-plane, point-milled billet compressor wheel with extended tip technology for more airflow, paired with a 64mm quick-spool turbine wheel. An upgraded 360-degree thrust bearing adds durability over the factory design.

Choose Your Model Year

The 2003 and 2004–2007 6.0L Powerstroke use different turbochargers, so select the version that matches your truck:

• 2003 Ford 6.0L Powerstroke: KC part #300243
• 2004–2007 Ford 6.0L Powerstroke: KC part #300017

Some early 2004 trucks use the 2003-style turbo. If your engine was built before 9/22/2003, choose the 2003 version. If you're unsure, check the part number on your existing turbo or your engine build date before ordering.

Key Features

• Brand-new turbo built on a new Garrett OEM core, not a reman
• 61mm billet compressor wheel with extended tip technology
• 64mm quick-spool turbine wheel
• Upgraded 360-degree thrust bearing
• New VGT solenoid
• Supports 450–550 hp with supporting mods
• Works with stock injectors up to 175cc/30% injectors
• 100% drop-in, no modifications required
• Retains OEM exhaust brake function when the calibration supports it
• Available for 2003 and 2004–2007 6.0L Powerstroke
• No core charge
• 1-year, unlimited mileage limited warranty

What Problem Does This Solve?

• A failing stock turbo. If your factory turbo is worn out, leaking or struggling with boost, the Jetfire Stage 1 replaces it with a brand-new unit that also adds performance.
• Stock injectors left underused. The factory turbo limits how much power stock injectors can make. The Jetfire is designed to get the most from stock injectors without moving to a larger turbo.
• Lag from larger turbos. Bigger Stage 1.5 and Stage 2 turbos can feel sluggish at low RPM, especially when towing. The Jetfire's smaller 61mm design spools quickly for better response under load.

Is This Turbo Right for You?

The Jetfire Stage 1 is ideal for owners running stock or mild performance injectors who tow heavy and want quicker spool and more power. It still runs well with 175cc injectors, but if you're building for maximum top-end power with larger injectors, a bigger turbo will serve you better. KC recommends pairing it with Edge or SCT tuning.

Exhaust Brake Note

The Jetfire retains the factory exhaust brake feature if your vehicle's calibration allows and is set up for it. Aftermarket flapper-style exhaust brakes create extreme back pressure that can be hard on the turbo and engine, so KC does not recommend them.

Shipping Restrictions

Not available for sale in California.