14.9L - 450ch Tuning
International PROSTAR 122 — Detailed power and torque gains by stage.
Gains by stage(1)
Power
450 hp
Torque
2779 Nm
diesel
Power
450→518ch
+68 ch
+15%
Torque
2779→3130Nm
+351 Nm
+13%
OriginalTuned
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Everything about 14.9L - 450ch tuning
Tuning the 14.9L - 450ch found in the International PROSTAR 122 is one of the most popular performance upgrades. This engine offers excellent potential for power and torque gains.
On ChiptuneMAP, find verified gain data for each stage, compare tuner prices and find the ideal professional for your project.
Gains summary by stage
On the International PROSTAR 122 14.9L - 450ch, tuning delivers up to +68 hp and +351 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 450 → 518 hp | 2779 → 3130 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 14.9L - 450ch?
Tuning the 14.9L - 450ch (International PROSTAR 122) delivers significant power and torque gains depending on the chosen stage. Stage 1, with no hardware modifications, offers the best gain-to-reliability ratio.
Is tuning reliable on the 14.9L - 450ch?
Yes, the 14.9L - 450ch is known for its reliability when tuned, especially at Stage 1. It's essential to use a certified tuner with maps tailored to your engine.
How much does International PROSTAR 122 tuning cost?
Prices vary by stage and tuner. Check our directory to compare rates from professionals near you.
Should I get a tuning box or an ECU remap?
ECU remapping (modifying the engine control unit map) delivers better results and integration than a plug-in tuning box. It's customized for each engine.
How do I find a tuner for my International PROSTAR 122?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.