SKU: 92405229371

KC Turbos KC300x G3 Stage 1 Turbo - E99-2003 Ford F-Series

Sale price$481.05 Regular price$534.50
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Description

KC Turbos KC300x G3 Stage 1 Turbo - E99-2003 Ford F-SeriesKC300x Stage 1 E99 03 Gen 3 Supports: Up to 205cc 30% injectors Features & Details: Powder Coating can take up to 3 weeks before it ships 100% Drop In Turbo (no modifications required) Dyno Proven Power Gains Redesigned Gen 3 7x7 SXE style compressor wheel with upgraded aero Thick Shaft Gen 3 SXE style turbine wheel Redesigned quick spool 0. 70AR Ported Compressor Cover Improved MAP Groove, Anti Surge Ring, and Volute Shape Redesigned 0. 91AR Turbine

KC300x Stage 1 E99-03

Gen 3

Supports: Up to 205cc/30% injectors

Features & Details:  

  • Powder Coating can take up to 3 weeks before it ships
  • 100% Drop In Turbo (no modifications required)
  • Dyno Proven Power Gains
  • Redesigned Gen 3 7x7 SXE style compressor wheel with upgraded aero
  • Thick Shaft Gen 3 SXE style turbine wheel
  • Redesigned quick spool 0.70AR Ported Compressor Cover
  • Improved MAP Groove, Anti-Surge Ring, and Volute Shape
  • Redesigned 0.91AR Turbine Housing with upgraded volute technology for Quicker Spool & More Top End Power
  • Spools FASTER than the old 0.84AR and flows MORE air than the old 1.0AR due to this radical redesign
  • 200% Larger Thrust and Journal Bearings
  • Thicker turbine shaft to accommodate larger bearings and  higher boost and HP levels.  Stock shaft sizes can deflect and result in catastrophic failures
  • Redesigned Bearing Housing with integrated cast iron backing plate for improved high speed stability by reducing deflection 
  • Added Steel Thrust Insert to Reinforce oil slinger and piston seal Contact Areas & Eliminate Bearing Fatigue
  • High Flow Non-EBPV outlet flange
  • Redesigned Round-Top Wastegate Actuator for increased boost control
  • Comes with all gaskets and o-rings to install
  • Comes with newly upgraded 4" intake boot with better fitment over previous designs

Description:  

Improve your 7.3 Powerstroke engine's performance with the KC300x Stage 1 Gen 3 Turbo. This turbo features a 4" ported housing with drilled anti-surge for better flow, a completely redesigned Gen 3 7x7 SXE style compressor wheel with extended tip technology and with upgraded aero to aid in quick spool, and a SXE style turbine wheel with a thicker shaft inside of completely redesigned compressor and turbine housings.

The Gen 3 KC300x features a .91 AR Turbine housing and a 0.70 AR compressor cover. Originally a 1.0 AR compressor cover, we changed it to a .70 AR cover with redesigned map groove, anti surge ring, volute shape and style with modern turbo technology. The turbine housing was previously available in .84 and 1.0ar; both are inefficient when compared to modern turbos. We took inspiration from the latest turbochargers in the market and applied their turbine housing design , flow path, volute shape, and material density to come up with our own 0.91AR turbine housing. This turbine housing was proven to spool up faster AND make more top end power when compared to either previous option.

The KC300x is a reliable journal bearing drop in turbo perfect for increasing your 7.3 Powerstroke's performance. This redesigned bearing housing and backing plate design to fit 200% LARGER thrust bearings and upgraded wider and taller journal bearings. Its upgraded steel thrust insert replaces the aluminum backing plate to keep expansion rates the same leading to more consistent turbocharger function. It's bearing housing has increase stability, backing plate stronger and cast into bearing housing integrated for improved rigidity reduces backing plate deflection and distortion under extreme heat and pressure 

We spent years in R&D to bring the most drop in power to your truck! Not only does this new turbo design outperform anything else on the market, but it has also upgraded all weak points in the stock turbo, improving reliability at elevated HP levels. For larger than 205/30s injectors, we recommend you check out our KC300x G3 Stage 2!

So what size is the new KC 300x Gen 3 Stage 1?  We are not going to tell you,  but I will tell you this turbo will outperform any other drop in turbo on the market guaranteed.  Better in every way and a perfect match from stock to 205/30 injectors.  If you really HAVE TO KNOW the size for some reason then give us a call and we can go over sizing options on the phone.

**We Highly Recommend adding these products for best results:**

  1. Upgrading your Up-Pipes
  2. Upgrading EBPV Pedestal   
  3. Running a Hydra Programming Chip

EXHAUST BRAKES:  We get asked a lot about exhaust brakes and if they work with our turbos.  We have found that some brands have clearance issues and might cause the brake to hinder performance, rub the turbine wheel, or cause other issues.  These brakes typically use some sort of flapper to close which causes extreme exhaust back pressure to aide in braking.  It will be up to the customer to verify fitment and functionality.

**These turbos come sand cast unless specifically requested. You can add a polished cover for an additional $250. Two week lead time on all polished covers**

**Our turbos are designed to fit directly in 7.3 equipped pick-up trucks. Although our turbos can drop into 7.3 equipped Vans, you will need to modify the turbo intake boot and down-pipe for proper fitment**

Our turbos are designed to fit directly in 7.3 equipped pick-up trucks. Although our turbos can drop into 7.3 equipped Vans, you will need to modify the turbo intake boot and down-pipe for proper fitment. This turbocharger will not fit OBS or E99 trucks without modification.

We cannot guarantee fitment with all variations of aftermarket parts like fuel systems, plenums, piping kits, etc. 



**These turbos come sand cast unless specifically requested. You can add a polished cover for an additional $250. Two week lead time on all polished covers**

**Our turbos are designed to fit directly in 7.3 equipped pick-up trucks. Although our turbos can drop into 7.3 equipped Vans, you will need to modify the turbo intake boot and down-pipe for proper fitment**

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92405229371

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★★★★★ 5
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Color: Dark Green, Size: XX-Large
This sweater is thick and stretchy but holds a nice shape, and is flattering on the body. The sleeves are nice and long too, which I really appreciate, being a tall person... the button detail is a great addition. True to size. I haven't washed it yet, and I imagine, based on the kind of woolly knit it is, that this sweater will eventually pill... but for now I'm enjoying being cozy and stylish. The deep green color is almost black green. I LOVE IT.
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Reviewed in the United States on February 2, 2026
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GypsySoul
Pawtucket, US
★★★★★ 5
Love it
Color: Dark Green, Size: Small
I got the dark green. Love the sweater and it's warm. I do layer the sweater as well. It is as pictured. Size is perfect to me. I like sweaters to be longer and a bit wider in case it is freezing and I need to layer it. This sweater is perfect for layering. It comes closer to my backside, it is a little wide and not snug, and I like that the sleeves come over my wrists
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Reviewed in the United States on February 7, 2026
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JB
Carnegie, US
★★★★★ 1
Still soft but looks terrible after 1 wash. Save your money
Color: White, Size: Small, Color: White, Size: Small
Update: sweater looked great when I received. After 1 wash it looks terrible. Looks like it’s been washed too many times, material fuzzy and piled. After wearing it once, it snagged and the knit pulled through. I would NOT recommend. I had such high hopes. Save your money. Very nice sweater, especially for the price! I love the details of the buttons on the sleeves. It is SO soft. It’s not super thick as I can see my skin through it when pressing my hand up against fabric. However, it’s not see through when wearing it. It’ll be perfect in cooler weather and perfect in the winter with a coat but won’t cause me to overheat when in a heated environment. I do feel like it runs big. I could have sized down a size. Although I’m not sure if it’ll shrink after a wash or two.
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Reviewed in the United States on September 22, 2025
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Lynn M
Pawtucket, US
★★★★★ 3
Disappointed.
Color: Blue, Size: Large, Color: Blue, Size: Large
This sweater is so comfortable and very soft. It fits well in a flattering, oversized way. But after one wash it is pilled everywhere which makes it look old and shabby. It’s at a price point where I feel compelled to return it.
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Reviewed in the United States on January 10, 2026
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TripletMama Heather
Lexington, US
★★★★★ 5
Perfect for casual wear and dressy style
Color: Dark Green, Size: Small
This sweater is soooo soft and the color is so rich. The fit of it is perfect, not too tight and not too baggy, just right and I used the size guide to pick my size. Just for reference, I am 5'3" and 130lbs, 38C bust. It's well made and washes great. I chose to hang dry mine as I typically don't put any of my sweaters in the dryer to dry, just to fluff them. I have this one in two colors, the green and the tan/beige and I would say they are both a true representative of the color shown.
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Reviewed in the United States on November 15, 2025

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