KC300x Stage 2 Turbo (63/73) - 7.3 Powerstroke OBS (1994-1998)

KC300x Stage 2 Turbo (63/73) - 7.3 Powerstroke OBS (1994-1998)

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1 Year

Unlimited Miles Limited Warranty

KC300x Stage 2 Turbo (63/73) - 7.3 Powerstroke OBS (1994-1998)

KC300x Stage 2 Turbo (63/73) - 7.3 Powerstroke OBS (1994-1998)

12 reviews

SKU 300221

Regular price $ 1,240.00
Regular price Sale price $ 1,240.00


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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 2 OBS

Gen 2

Supports: Up to 205cc/30% injectors


Features & Details: 

  • 100% drop in turbo (no modifications required)
  • 63mm 7x7 SXE style compressor wheel with extended tip technology
  • 73mm 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 2 63/73 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 73mm 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 12 reviews
Much Needed Upgrade

I finally pulled the trigger on purchasing this turbo and boy let me tell you, it is definitely a much needed upgrade if you own an obs 7.3. It sounds so much better and gives your 7.3 much more power. I definitely recommend this turbo!


Love the performance keeps egts down and sounds great! Pairs great with full force stage 1.5 180/30 injectors.

Paul Menard
must have for anybody looking

My old 7.3 turbo with 328k was worn out and ready for a replacement after injector upgrade. The guys over at kc turbo hooked me up with a stage 2 63/73 that looking back is a must have for anybody looking to update their old workhorse. The turbo is good quality and comes with the required seals and gasket to install, plus stickers!

Kc Newman
Best Buy yet

Love this stage 2 Kc300x turbo. It sounds like pure whistle and will never regret buying this turbo. Also makes my 7.3 sound way louder and lots more boost and power. My Best Buy yet

Thomas Gray
Best aftermarket turbos

Best aftermarket turbos in the west! KC turbos offers leading edge turbos
Turbo Diesel trucks ranging from Powerstroke, Duramax, and Cummins engines! Not only turbos but they offer tons of other turbo related and non turbo related OEM and aftermarket parts. Highly recommend for anyone looking to spice up their tow rig!