The Hummer H3 3.7 242hp (2006 - 2010) produces 242bhp and 328Nm in standard form. A Stage 1 ECU remap can raise output to 260bhp and 350Nm, a gain of 18bhp and 22Nm, with no hardware modifications required.
Interested in a Stage 1 remap for your Hummer H3? Get in touch and we will discuss the best options for your vehicle.
JSM Diagnostics comes to you. Mobile ECU remapping across Medway and the surrounding areas.
Call us: 07711 934 905
Mon – Fri: 8:30am – 5:30pm