Porsche Cayenne 4.5 S 340 hp — Stage 1 file (+20 hp)

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Chip tuning for Porsche Cayenne 4.5 S 340 hp ECU

Porsche Cayenne (2003 - 955) 4.5 S 340 hp — sports petrol engine of the passenger segment of the Volkswagen Group (VAG) group (Германия, 1931). Stage 1 chip tuning raises power from 340 to 360 hp (+20 hp, +6%) and torque from 420 to 445 Nm (+25 Nm). ECU — Bosch ME7.1.1. Flashing method: OBD or Bench depending on the unit's protection. The 2003 generation — old-era petrol ECUs (ME7/ME9/MED9/Simos) with easily readable memory.

Porsche specialises in sports cars, roadsters and premium SUVs. Porsche has been part of the Volkswagen Group (VAG) since 2012. Porsche is a premium sports car manufacturer from Stuttgart-Zuffenhausen, founded in 1931. Porsche's petrol range spans sports cars, roadsters and premium SUVs.

On Porsche, Stage 1 is a premium service that more often requires manual validation. Within the VAG group, Porsche shares some ECUs and platforms with Audi. The Porsche community is the premium segment of chip tuning, active across Europe and the US. High-output Porsche models run a high-output platform with solid headroom for Stage 1. On the Porsche Turbo, Stage 1 delivers a solid gain even on stock hardware.

Frequently asked questions

How many horsepower does the Porsche Cayenne 4.5 S 340 hp reach after a remap?

The Stage 1 gain for the Porsche Cayenne 4.5 S 340 hp is 20 hp (+6%) over the stock 340 hp, for a total of 360 hp. Torque rises from 420 to 445 Nm (+25 Nm).

What is Stage 1 chip tuning for the Porsche Cayenne?

Stage 1 on the Porsche Cayenne 4.5 S 340 hp is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +20 hp with no hardware changes.

What does Stage 1 give on the powerful Porsche Cayenne 4.5 S 340 hp?

The high-output Porsche Cayenne 4.5 S 340 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 does Stage 2 differ from Stage 1 on the Porsche Cayenne 4.5 S 340 hp?

Stage 2 on the Porsche Cayenne 4.5 S 340 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

What control unit does the Porsche Cayenne 4.5 S 340 hp run?

The control unit of the Porsche Cayenne 4.5 S 340 hp is the Bosch ME7.1.1. Before flashing, the engineer identifies the exact revision and selects the write method.

Does Stage 1 void the warranty on the Porsche Cayenne?

Stage 1 on the Porsche Cayenne voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.

How quickly is chip tuning of the Porsche Cayenne 4.5 S 340 hp done?

The full remap cycle for the Porsche Cayenne — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.

Can you return to stock after Stage 1 on the Porsche Cayenne?

The original Porsche Cayenne ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.

How much does Stage 1 cost for the Porsche Cayenne 4.5 S 340 hp?

The cost of Stage 1 for the Porsche Cayenne 4.5 S 340 hp is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.

Last updated: 31.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno