Mon – Fri: 8:30am – 5:30pm | Sat & Sun: Closed South East England
jsmdiagnostics@gmail.com 07711 934 905

Hummer Remapping

Select a Hummer model to view available engine variants and power gain figures.

H1
H2
H3

Ready to Remap?

JSM Diagnostics comes to you. Mobile ECU remapping across Medway and the surrounding areas.

Message Us 07711 934 905
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Call us: 07711 934 905
Mon – Fri: 8:30am – 5:30pm