KC300x Stage 1 Turbo (63/70) - 7.3 Powerstroke OBS (1994-1998)

KC300x Stage 1 Turbo (63/70) - 7.3 Powerstroke OBS (1994-1998)

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1 Year

Unlimited Miles Limited Warranty

KC300x Stage 1 Turbo (63/70) - 7.3 Powerstroke OBS (1994-1998)

KC300x Stage 1 Turbo (63/70) - 7.3 Powerstroke OBS (1994-1998)

28 reviews

SKU 300233

Regular price $ 1,190.00
Regular price Sale price $ 1,190.00


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Turbo Cover

Not available for sale in the state of California, Click here to read Emissions Notice

1 Year

Unlimited Miles Limited Warranty


KC300x Stage 1 OBS

Gen 2

Supports: Up to 180cc/30% injectors


Features & Details:

  • Powder Coating can take up to 3 weeks before it ships
  • 100% drop in turbo (no modifications required)
  • 63mm 7x7 SXE style compressor wheel with extended tip technology
  • 70mm SXE style turbine wheel
  • 4" ported compressor housing with drilled anti-surge for high flow
  • High Flow Non-EBPV outlet flange
  • Upgraded 360 Thrust Journal Bearing Design
  • Comes with all gaskets and o-rings to install
  • Comes with new 4" intake boot


Improve your 7.3 Powerstroke engine's performance with the KC300x Stage 1 63/70 Gen 2 Turbo. This turbo features a 4" ported housing with drilled anti-surge for better flow, a 63mm 7x7 SXE style compressor wheel with extended tip technology, and a 70mm SXE style turbine wheel. The KC300x is a reliable journal bearing drop in turbo perfect for increasing your 7.3 Powerstroke's performance. 

This turbo will surprise you at how much it will wake up your 7.3! We have torture tested it for longevity, proven its capability on the dyno, and at the Race Track. The 1.0 A/R Housing is intended to cool your EGTs above 3000 RPMS. For dedicated tow rigs and daily drivers, the .84 A/R Housing will provide a quicker spool and cooler EGT's below 3000 RPMs.

**Please select your trucks CCV when ordering**

**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.  This can be hard on a turbo and motor and is not recommended.  It will be up to the customer to verify fitment and functionality.**


Click here for more information on the KC300x in Diesel World Magazine.

**Pictured is a polished cover, these turbos come sand cast unless specifically requested. You may get a polished unit depending on stock. 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**

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Customer Reviews

Based on 28 reviews
Lee Partyka
6.0 complete build

I purchased the stage one turbo to go on a complete engine rebuild from the bear block. After putting this turbo on, it looks so good. I just had to take a picture of just the turbo on the motor once I started it and heard that whistle and then drove it and felt the power and smooth, I was hooked. Not only is the turbo top-notch but so is customer service Kylie was so helpful and I called them just to let them know how grateful I was and how appreciative I was of the quality of the product. Highly recommend any of their products in the future thank you , very happy customer


Exellent turbo upgrade from stock

Alan C.

Great company to deal with

billy grisham
KC is the only way to go

KC is the only way to go. I don't let my customers waste their money on any reman junk. I've installed at least 2 dozen and never had a problem or come back for turbo trouble.

Michael Cleveland
performs better than I could have imagined

Amazing products, let’s be honest getting a new turbo in a 7.3 after 230k miles is a pain, but we’ll worth the labor and the cost was great as well. Sounds and performs better than I could have imagined. Would come back to these guys again and again.