The GMC Sierra 5.3 V8 355hp (2014 - 2016) produces 355bhp and 519Nm in standard form. A Stage 1 ECU remap can raise output to 375bhp and 540Nm, a gain of 20bhp and 21Nm, with no hardware modifications required.
Interested in a Stage 1 remap for your GMC Sierra? 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