GMC Sierra 6.2L V8 426 hp — Stage 1 file (+10 hp)
hp
Stage 1 file for GMC Sierra 6.2L V8 426 hp
Target +0 hp. Custom development for your engine.
Chip tuning for GMC Sierra 6.2L V8 426 hp ECU
GMC Sierra (2014) 6.2L V8 426 hp — mass-market petrol engine of the passenger segment of the General Motors group (США, 1911). Stage 1 chip tuning raises power from 426 to 436 hp (+10 hp, +2%) and torque from 624 to 634 Nm (+10 Nm). This engine ships with different ECU variants: Delco E92, Delco T87. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 2 configurations · 2 ECU variants. A petrol engine built in 2014 — a Tricore platform without strong protection; OBD access works.
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. The LT-series V8 is the modern LS replacement, fitted to Camaro/Corvette/Silverado. Chevrolet 2.0 / 1.4 Turbo are mainstream turbo engines for saloons and compacts. GM ECUs (E78/E80/E92) are Bosch-based but use their own checksum.
HP Tuners is the primary tool for Chevrolet/GM in the US. The US Chevrolet community is the largest for Camaro, Corvette and LS-swaps. Camaro/Corvette confidently reach Stage 2 with hardware. HP Tuners is the leading tool for top Chevrolet models. Top Chevrolet Corvette / Camaro ZL1 engines sit at the power ceiling of the American performance segment.
Frequently asked questions
How much does the power of the GMC Sierra 6.2L V8 426 hp increase after Stage 1?
Stage 1 chip tuning on the GMC Sierra 6.2L V8 426 hp boosts engine output by 10 hp: from 426 to 436 hp. Torque rises from 624 to 634 Nm (+10 Nm).
What changes in the GMC Sierra ECU after Stage 1?
Stage 1 is a software optimization of the factory ECU firmware of the GMC Sierra with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +10 hp with no hardware changes.
Does Stage 1 make sense on the GMC Sierra 6.2L V8 426 hp with this much power?
On the top-spec GMC Sierra 6.2L V8 426 hp engine, Stage 1 is the starting point before Stage 2 with a downpipe, intake and a larger intercooler. The mass-market factory calibration leaves substantial headroom for an aggressive software tune.
What is Stage 2 for the GMC Sierra 6.2L V8 426 hp?
Stage 2 for the GMC Sierra 6.2L V8 426 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.
Which control units is the GMC Sierra 6.2L V8 426 hp built with?
The GMC Sierra 6.2L V8 426 hp comes with 2 ECU variants: Delco E92, Delco T87. Calibration is done for the specific unit after the revision is identified.
Does the factory warranty of the GMC Sierra remain valid after Stage 1?
After remapping the GMC Sierra, 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 Sierra?
Reading and writing via OBD takes 25-30 minutes on the GMC Sierra. 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 Sierra?
Before Stage 1 the original of the GMC Sierra 6.2L V8 426 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the GMC Sierra 6.2L V8 426 hp cost?
The remap price for the GMC Sierra 6.2L V8 426 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.