Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp — Stage 1 file (+15 hp)

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Chip tuning for Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp ECU

Jeep Grand Cherokee (2011 - WK2) 5.7i V8 HEMI (jeep) 345 hp — mass-market petrol engine of the passenger segment of the Stellantis group (США, 1941). Stage 1 chip tuning raises power from 345 to 360 hp (+15 hp, +4%) and torque from 525 to 546 Nm (+21 Nm). In the CHIPOK database: 2 configurations. The 2011 generation — mid-generation petrol ECUs (MEDC17/MEVD17/Simos PCR), OBD flash on production revisions.

The Jeep range comprises the Wrangler, Cherokee, Grand Cherokee, Compass, Renegade, Gladiator and Avenger. Jeep shares platforms and engines with Dodge, Chrysler and Ram. Jeep is an American off-road brand, founded in 1941 for military use (Willys MB). Jeep shares engines with Dodge and Chrysler. 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 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. High-output Jeep models are the top-spec Grand Cherokee and Wrangler, with solid headroom for Stage 1.

Frequently asked questions

What power gain do you get after chip tuning the Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp?

The Stage 1 gain for the Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp is 15 hp (+4%) over the stock 345 hp, for a total of 360 hp. Torque rises from 525 to 546 Nm (+21 Nm).

What is Stage 1 chip tuning for the Jeep Grand Cherokee?

Stage 1 chip tuning of the Jeep Grand Cherokee is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +15 hp with no hardware changes.

Is Stage 1 safe on the high-output Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp?

The high-output Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp has a conservative factory calibration aimed at the mass market. Stage 1 unlocks the engine's real potential while turbo and injector life are preserved.

How much does Stage 2 add on the Jeep Grand Cherokee?

Stage 2 on the Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

What happens to the Jeep Grand Cherokee warranty after chip tuning?

The factory warranty of the Jeep Grand Cherokee does not remain valid after Stage 1 — the manufacturer withdraws its obligations once the ECU software is changed. CHIPOK provides its own warranty on its work and support.

How long does remapping the Jeep Grand Cherokee take?

On the Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp: OBD flash 25-30 minutes, Bench (if required) about an hour. The file processing itself takes 5-30 minutes once the original bin is received.

Is the original file kept when chip tuning the Jeep Grand Cherokee?

Yes, the original ECU firmware of the Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp is kept and can be flashed back at any time. Returning to stock via OBD takes 25-30 minutes.

What is the price of a Stage 1 remap for the Jeep Grand Cherokee?

Stage 1 for the Jeep Grand Cherokee 5.7i V8 HEMI (jeep) 345 hp is paid for with CHIPOK credits (1 cr = 1 €). The final amount is set in the calculator, taking the extra options (off functions) into account.

Last updated: 30.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno