Case Optum All 300 6.5 CVX Tier 4B 300hp
Real standard and upgraded performance figures for the 300 6.5 CVX Tier 4B 300hp engine in the Case Optum All.
The Case Optum All 300 6.5 CVX Tier 4B 300hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 300 | 1282 |
| Stage 1 | 350 | 1480 |
| Stage 2 | 375 | 1579 |
- Make
- Case
- Model
- Optum
- Generation
- All
- Engine
- 300 6.5 CVX Tier 4B 300hp
- Fuel type
- diesel
Frequently asked questions
Is Stage 1 tuning safe for the Case Optum All 300 6.5 CVX Tier 4B 300hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 300 6.5 CVX Tier 4B 300hp make after tuning?
Standard output is 300 HP / 1282 Nm; Stage 1 on this engine typically reaches 350 HP / 1480 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Case Optum All 300 6.5 CVX Tier 4B 300hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 300 6.5 CVX Tier 4B 300hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.