KC Turbo KC300x G3 Stage 2 Turbo – Polished Finish (302524-Pol) For Late 1999-2003 Powerstroke 7.3L

$1,740.00

The KC300x Stage 2 Gen 3 Turbo is a drop in upgrade for the 7.3 Powerstroke designed for higher horsepower builds. It delivers faster spool, increased airflow, and stronger top end power with a redesigned compressor and turbine setup. Built with upgraded bearings and reinforced components, it offers improved reliability for trucks running 205/30 to 238/80 injectors.

Powder Coating *

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Total: $1,740.00
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Description

KC300x Stage 2 L99
Gen 3
Supports: Up to 238cc/80% injectors
Features & Details:
100% Drop In Turbo (no modifications required)
Dyno Proven Power Gains
Redesigned Gen 3 7×7 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
Powder Coating can take up to 3 weeks before it ships
Description:
Improve your 7.3 Powerstroke engine’s performance with the KC300x Stage 2 Gen 3 Turbo. This turbo features a 4″ ported housing with drilled anti-surge for better flow, a completely redesigned Gen 3 7×7 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.

So what size is the new KC 300x Gen 3 Stage 2? 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. This turbo is recommend from 205/30 to 238/80 injectors. It will run fine on smaller sizes but we recommend our s1 turbo for 205/30 and smaller 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:**

Upgrading your Up-Pipes
Upgrading EBPV Pedestal
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.

**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. 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.

This turbo is designed to make the most of your power for your 7.3 powerstroke. If you have smaller injectors, check out our KC300x G2 Stage 1!

Additional information
Weight 42 lbs
Dimensions 14 × 14 × 14 in
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About brand
KC Turbo builds turbochargers for diesel trucks that need more airflow and power. The company focuses on strong performance and dependable towing capability. KC Turbo products support daily driving, towing, and performance use. KC Turbo designs turbochargers to improve throttle response and top-end power. Their turbos maintain drivability while supporting higher boost levels. This helps trucks perform under load without sacrificing reliability. Diesel owners trust the brand for proven turbo upgrades. Whether towing heavy loads or pushing performance limits, these turbos deliver consistent and reliable results.
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