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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D. Rad
Lake Worth, US
★★★★★ 5
Beautiful, comfortable sneakers
Size: 13 Little Kid, Color: Black/Rose Gold
Great sneakers. Easy for my six year old to get on and not too tight that she struggle. That tends to happen with other sneakers like this. Colors are bight and on point.
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Reviewed in the United States on May 29, 2025
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Plex
Port Orchard, US
★★★★★ 4
Love those sneakers but the longevity is questionable.
Size: 5.5 Big Kid, Color: Navy/Lavender
My daughter loves the look and no shoelace design, but maybe she is just a tad too active and these shoes usually last less than 1 year. Luckily unless you decide to hand its down to your next child, longevity is usually not my top concern as they will outgrow the size before it broke.
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Reviewed in the United States on March 9, 2025
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CFlare
Grantham, US
★★★★★ 5
Great durability & washablity.
Size: 4 Big Kid, Color: Black/Rose Gold
These Skechers slip on shoes are perfect for kiddos! I've probably bought +20 pairs between my 3 daughters over the past 3-4 years. The shoes are comfortable, durable, last until the kids outgrow them, and best of all are easy to wash in my clothes washer. Definitely a great value. They come in so many different colors and styles that my kids easily find a pair that satisfy their personal tastes.
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Reviewed in the United States on April 22, 2025
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Robert Hebert
Fort Morgan, US
★★★★★ 5
comfy and well-fitted
Size: 5 Big Kid, Color: Lavender/Multi
My daughter loves the color and the way it fits her feet. Her toes don't feel tight and squished. This is big for her since she has curved nails, and the pressure gives her sores if the shoes are too narrow at the toes. She likes that they are slip ons becasue in a rush, she doesn't like to tie her shoes; the easy use is perfect. She is a runner, not professionally, but she is ten, and she runs a lot at school. These are durable and last a long time compared to cheaper brands. I'm glad she doesn't care for brand names because this is a great shoe that won't break the bank.
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Reviewed in the United States on January 14, 2026
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Lea
Omaha, US
★★★★★ 5
If the shoe fits!
Size: 13 Little Kid, Color: Lavender/Multi, Size: 13 Little Kid, Color: Lavender/Multi
We recently purchased these girls’ sneakers, and they’ve exceeded all expectations! First off, the slip resistance is top-notch—perfect for everything from the playground to PE class. My daughter feels confident running, jumping, and playing without worrying about slipping, even on slick surfaces. In terms of value for money, these shoes are a fantastic investment. They’re durable, high-quality, and priced right for growing kids who need reliable footwear. The materials feel premium, and after weeks of wear, they still look and perform like new. The ease of use is a major bonus. The simple design makes them a breeze for kids to put on and take off by themselves. I’m really impressed with the overall shoe quality. The stitching is solid, the soles are supportive yet flexible, and there’s great attention to detail. Plus, they’re lightweight, which is a must for kids who are always on the go. No dragging feet here! And let’s not forget the style—these sneakers are absolutely adorable! All in all, these sneakers hit every mark. They’re safe, stylish, and built to last—highly recommended!
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Reviewed in the United States on May 9, 2025

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