56 (5.6i V8) - 408ch Tuning
Infiniti QX80 — Detailed power and torque gains by stage.
Gains by stage(4)
Power
408 hp
Torque
550 Nm
essence
Power
408→430ch
+22 ch
+5%
Torque
550→580Nm
+30 Nm
+5%
OriginalTuned
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Everything about 56 (5.6i V8) - 408ch tuning
Tuning the 56 (5.6i V8) - 408ch found in the Infiniti QX80 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 Infiniti QX80 56 (5.6i V8) - 408ch, tuning delivers up to +62 hp and +90 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 408 → 430 hp | 550 → 580 Nm | — |
| Stage 2 | 408 → 470 hp | 550 → 640 Nm | — |
| E85 Flexfuel | 408 → 408 hp | 550 → 550 Nm | — |
| E85+ | 408 → 430 hp | 550 → 580 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 56 (5.6i V8) - 408ch?
Tuning the 56 (5.6i V8) - 408ch (Infiniti QX80) 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 56 (5.6i V8) - 408ch?
Yes, the 56 (5.6i V8) - 408ch 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 Infiniti QX80 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 Infiniti QX80?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.