Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp — Stage 1 file (+19 hp)
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Stage 1 file for Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp ECU
Jeep Grand Cherokee (2005 - WK) 6.1 SRT8 HEMI 431 hp — mass-market petrol engine of the passenger segment of the Stellantis group (США, 1941). Stage 1 chip tuning raises power from 431 to 450 hp (+19 hp, +4%) and torque from 570 to 600 Nm (+30 Nm). ECU — Siemens/Continental NGC4. Flashing method: OBD or Bench depending on the unit's protection. In the CHIPOK database: 2 configurations. A petrol engine built in 2005 — the era before widespread firmware encryption, OBD flash without complications.
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 Jeep Trackhawk is the flagship, powered by the Hellcat-family supercharged Hemi V8. Jeep's petrol range comprises the Pentastar V6, the Hemi V8 and turbo four-cylinders. The Trackhawk and SRT have significant potential with supporting hardware.
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.
Frequently asked questions
How much does the power of the Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp increase after Stage 1?
Stage 1 chip tuning on the Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp boosts engine output by 19 hp: from 431 to 450 hp. Torque rises from 570 to 600 Nm (+30 Nm).
What changes in the Jeep Grand Cherokee ECU after Stage 1?
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 +19 hp with no hardware changes.
Does Stage 1 make sense on the Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp with this much power?
On the top-spec Jeep Grand Cherokee 6.1 SRT8 HEMI 431 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 6.1 SRT8 HEMI 431 hp?
Stage 2 for the Jeep Grand Cherokee 6.1 SRT8 HEMI 431 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.
What ECU platform does the Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp use?
The Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp is fitted with the Siemens/Continental NGC4 ECU. The read method depends on the unit's protection: OBD, Bench via BDM, or Boot mode.
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 6.1 SRT8 HEMI 431 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 6.1 SRT8 HEMI 431 hp cost?
The remap price for the Jeep Grand Cherokee 6.1 SRT8 HEMI 431 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.