400 - 42ch Tuning
McLaren GT — Detailed power and torque gains by stage.
Gains by stage(3)
Power
42 hp
Torque
36 Nm
essence
Power
42→47ch
+5 ch
+12%
Torque
36→44Nm
+8 Nm
+22%
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Everything about 400 - 42ch tuning
Tuning the 400 - 42ch found in the McLaren GT 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 McLaren GT 400 - 42ch, tuning delivers up to +5 hp and +8 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 42 → 47 hp | 36 → 44 Nm | — |
| E85 Flexfuel | 42 → 42 hp | 36 → 36 Nm | — |
| E85+ | 42 → 47 hp | 36 → 44 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 400 - 42ch?
Tuning the 400 - 42ch (McLaren GT) 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 400 - 42ch?
Yes, the 400 - 42ch 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 McLaren GT 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 McLaren GT?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.