GMC Sierra 4.8 V8 295bhp tuning file

With a bespoke remap the GMC Sierra 4.8 V8 295bhp gains +20 bhp and +21 Nm, rising from 295 bhp / 414 Nm to 315 bhp / 435 Nm (7% more power). We build each tuning file around the software number of your read on the Ac Delco E38, so nothing generic goes back into the car. Add DECAT, DTC Removal, FLAPS, Pop & Bang Crackle map to the same file if needed.

Who is this remap for?

Naturally aspirated petrol engines gain less than turbo engines, but a remap still improves throttle response and smooths out flat spots in the power delivery. 295 → 315 bhp equals roughly 220 → 235 kW.

Figures are guide values from our rolling road and comparable vehicles. Results depend on the vehicle's condition, hardware and fuel quality. Remapping in the UK: let your insurer know about the modification. DPF, EGR and AdBlue solutions are supplied for off-road and motorsport use only and are not legal for use on UK roads.