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Thumbnail Filmstrip of 1999.5-2003 7.3L Powerstroke KC300x Gen 3 Stage 1 Turbo KC Turbo 302523 Images
The KC 302523 is the KC300x Gen 3 Stage 1 turbo for a late-1999 through 2003 7.3 Powerstroke. It is a drop-in for a Super Duty pickup. No pedestal or up-pipe changes.
The compressor is a Gen 3 7x7 SXE wheel in a 0.70 A/R ported cover with an anti-surge ring. The turbine is a thick-shaft SXE wheel in a 0.91 A/R wastegated housing. KC uses that housing to spool faster than the old .84 and still carry the top end. The thrust and journal bearings are the larger Gen 3 set. A high-flow non-EBPV outlet and a round-top wastegate are on it. Gaskets and a 4-inch intake boot are included. KC rates it for stock injectors up to about 205 cc, or 30 percent over. Larger injectors belong on the Stage 2.
It will not fit an early 1999 or an OBS truck without modification. The early-1999 Stage 1 is 302676. A van can take this one, but the intake boot and the downpipe have to be reworked.
This is the tow and daily turbo in the Gen 3 line. A tune belongs with it if you want the extra air used. A stock file will still run it.
Fitment
- Late 1999–2003 Ford 7.3L Powerstroke pickups
- Drop-in, 4-inch inlet boot included
- 0.70 A/R compressor, 0.91 A/R turbine
- Stock to about 205/30 injectors
- Does not fit early 1999 or OBS without modification
The KC 302523 is the KC300x Gen 3 Stage 1 turbo for a late-1999 through 2003 7.3 Powerstroke. It is a drop-in for a Super Duty pickup. No pedestal or up-pipe changes.
The compressor is a Gen 3 7x7 SXE wheel in a 0.70 A/R ported cover with an anti-surge ring. The turbine is a thick-shaft SXE wheel in a 0.91 A/R wastegated housing. KC uses that housing to spool faster than the old .84 and still carry the top end. The thrust and journal bearings are the larger Gen 3 set. A high-flow non-EBPV outlet and a round-top wastegate are on it. Gaskets and a 4-inch intake boot are included. KC rates it for stock injectors up to about 205 cc, or 30 percent over. Larger injectors belong on the Stage 2.
It will not fit an early 1999 or an OBS truck without modification. The early-1999 Stage 1 is 302676. A van can take this one, but the intake boot and the downpipe have to be reworked.
This is the tow and daily turbo in the Gen 3 line. A tune belongs with it if you want the extra air used. A stock file will still run it.
Fitment
Late 1999–2003 Ford 7.3L Powerstroke pickups
Drop-in, 4-inch inlet boot included
0.70 A/R compressor, 0.91 A/R turbine
Stock to about 205/30 injec[...]
The KC 302523 is the KC300x Gen 3 Stage 1 turbo for a late-1999 through 2003 7.3 Powerstroke. It is a drop-in for a Super Duty pickup. No pedestal or up-pipe changes.
The compressor is a Gen 3 7x7 SXE wheel in a 0.70 A/R ported cover with an anti-surge ring. The turbine is a thick-shaft SXE wheel in a 0.91 A/R wastegated housing. KC uses that housing to spool faster than the old .84 and still carry the top end. The thrust and journal bearings are the larger Gen 3 set. A high-flow non-EBPV outlet and a round-top wastegate are on it. Gaskets and a 4-inch intake boot are included. KC rates it for stock injectors up to about 205 cc, or 30 percent over. Larger injectors belong on the Stage 2.
It will not fit an early 1999 or an OBS truck without modification. The early-1999 Stage 1 is 302676. A van can take this one, but the intake boot and the downpipe have to be reworked.
This is the tow and daily turbo in the Gen 3 line. A tune belongs with it if you want the extra air used. A stock file will still run it.
Fitment
- Late 1999–2003 Ford 7.3L Powerstroke pickups
- Drop-in, 4-inch inlet boot included
- 0.70 A/R compressor, 0.91 A/R turbine
- Stock to about 205/30 injectors
- Does not fit early 1999 or OBS without modification
Q
Alexander • 09/26/2025, 11:46:54 PM
Can I use a 3" downpipe with this turbo or do I have to get a different one?
A
09/29/2025, 7:35:22 PM
It fits factory style down pipes.
Q
James Krueger • 12/21/2025, 2:41:12 PM
Do I need a tuner? If so which one do I need?
A
12/22/2025, 4:05:45 PM
You don't need tuning for a turbo but without the extra fuel of a tuner this turbo would lag. Recommend the Hydra tuner.
Q
Justin • 01/06/2026, 4:06:18 AM
Is this turbo ok with stock injectors?
A
01/09/2026, 1:55:57 PM
It might spool some slower. If you have a chip that helps. Wouldn't run it without tuning.
Q
Paul • 08/15/2026, 1:34:27 AM
Will this work with 160/0 single shot injectors? Yes I have a Hydra tuner. Should I have new tunes written when I ass this turbo?
A
08/17/2026, 3:10:12 PM
Yes this turbo will work well for stage one injectors. No retune needed.
5/5 Stars out of 1 Reviews
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Chris (AL) | March 28th, 2025
Unreal performance from stock turbo i highly recommend this setup! The intake of this charger is such a work of art!
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: 7.3 Powerstroke 1999.5-2003