GMC Envoy 4.2i 24V 275 hp — Stage 1 file
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Stage 1 file for GMC Envoy 4.2i 24V 275 hp
Target +0 hp. Custom development for your engine.
Chip tuning for GMC Envoy 4.2i 24V 275 hp ECU
GMC Envoy (2006) 4.2i 24V 275 hp — mass-market petrol engine of the passenger segment of the General Motors group (США, 1911). A petrol engine built in 2006 — the era before widespread firmware encryption, OBD flash without complications.
GMC is an American pickup and SUV brand, part of General Motors since 1909. GMC specialises in premium pickups (Sierra) and large SUVs (Yukon, Hummer EV). GMC shares platforms and engines with Chevrolet within GM. Camaro 2.0/3.6 delivers a solid gain with Stage 1. The LT-series V8 is the modern LS replacement, fitted to Camaro/Corvette/Silverado. GM ECUs (E78/E80/E92) are Bosch-based but use their own checksum.
LS-swap is an industry of its own (Chevy LS engines into any car). The US Chevrolet community is the largest for Camaro, Corvette and LS-swaps. HP Tuners is the primary tool for Chevrolet/GM in the US. High-output Chevrolet Camaro / Silverado offer solid headroom for Stage 1.
Frequently asked questions
What changes in the GMC Envoy ECU after Stage 1?
Stage 1 is a software optimization of the factory ECU firmware of the GMC Envoy with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed.
Do you need hardware changes for Stage 1 on the GMC Envoy?
Stage 1 on the powerful GMC Envoy 4.2i 24V 275 hp “lifts” the factory limiters with no hardware changes. The gain is noticeable in the mid and upper range. There is headroom left for moving to Stage 2 (downpipe + intake + intercooler).
What is Stage 2 for the GMC Envoy 4.2i 24V 275 hp?
Stage 2 for the GMC Envoy 4.2i 24V 275 hp is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.
Does the factory warranty of the GMC Envoy remain valid after Stage 1?
After remapping the GMC Envoy, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.
How long is the wait for a Stage 1 remap for the GMC Envoy?
Reading and writing via OBD takes 25-30 minutes on the GMC Envoy. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.
How do you roll back to the factory firmware of the GMC Envoy?
Before Stage 1 the original of the GMC Envoy 4.2i 24V 275 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the GMC Envoy 4.2i 24V 275 hp cost?
The remap price for the GMC Envoy 4.2i 24V 275 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.