Jeep Grand Cherokee 6.4 V8 SRT8 477 hp — Stage 1 file (+23 hp)
hp
Stage 1 file for Jeep Grand Cherokee 6.4 V8 SRT8 477 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Jeep Grand Cherokee 6.4 V8 SRT8 477 hp ECU
Jeep Grand Cherokee (2011 - WK2) 6.4 V8 SRT8 477 hp — mass-market petrol engine of the passenger segment of the Stellantis group (США, 1941). Stage 1 chip tuning raises power from 477 to 500 hp (+23 hp, +5%) and torque from 637 to 668 Nm (+31 Nm). This engine ships with different ECU variants: Siemens/Continental GPEC2, Siemens/Continental GPEC2A. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. The ZF 8HP70 TCU is calibrated with a separate file — torque limiter and shift maps for Stage 1. In the CHIPOK database: 3 configurations · 3 ECU variants. A petrol engine built in 2011 — a Tricore platform without strong protection; OBD access works.
Trail Rated is Jeep's signature certification for off-road capability. The Jeep range comprises the Wrangler, Cherokee, Grand Cherokee, Compass, Renegade, Gladiator and Avenger. Jeep shares platforms and engines with Dodge, Chrysler and Ram. The Trackhawk and SRT have significant potential with supporting hardware. Jeep shares engines with Dodge and Chrysler. The Jeep Trackhawk is the flagship, powered by the Hellcat-family supercharged Hemi V8.
With supporting hardware, the Trackhawk confidently reaches Stage 2. The Jeep community in the US offers a large pool of ready-made Stage files for off-road use. In Europe the Jeep community is growing thanks to the diesel versions. Top-tier Jeep Trackhawk/SRT engines sit at the power ceiling of American SUVs; the gain is significant.
The Trackhawk and SRT come with a reinforced ZF 8HP. The ZF 8HP TCU rarely needs calibration below Stage 1+. Aisin transmissions feature on the compact crossovers.
Frequently asked questions
How many horsepower does the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp reach after a remap?
Stage 1 for the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp adds +23 hp — power increases from 477 to 500 hp (+5%). Torque rises from 637 to 668 Nm (+31 Nm).
What does a Stage 1 remap of the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp include?
Stage 1 is a software optimization of the factory ECU firmware of the Jeep Grand Cherokee with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +23 hp with no hardware changes.
Does Stage 1 make sense on the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp with this much power?
On the top-spec Jeep Grand Cherokee 6.4 V8 SRT8 477 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 Jeep Grand Cherokee 6.4 V8 SRT8 477 hp?
Stage 2 for the Jeep Grand Cherokee 6.4 V8 SRT8 477 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 Jeep Grand Cherokee 6.4 V8 SRT8 477 hp built with?
The Jeep Grand Cherokee 6.4 V8 SRT8 477 hp comes with 2 ECU variants: Siemens/Continental GPEC2, Siemens/Continental GPEC2A. Calibration is done for the specific unit after the revision is identified.
What does remapping the ZF 8HP70 gearbox give on the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp?
The ZF 8HP70 TCU is calibrated separately: the torque limit is raised, the shift maps are optimized for the Stage 1 characteristics, and launch control is re-tuned. The TCU file is flashed separately from the ECU.
Does the factory warranty of the Jeep Grand Cherokee remain valid after Stage 1?
After remapping the Jeep Grand Cherokee, 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 Jeep Grand Cherokee?
Reading and writing via OBD takes 25-30 minutes on the Jeep Grand Cherokee. 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 Jeep Grand Cherokee?
Before Stage 1 the original of the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp cost?
The remap price for the Jeep Grand Cherokee 6.4 V8 SRT8 477 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.