BMW 4 Gran Coupé-series 28i 245 hp — Stage 1 file (+35 hp)
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Stage 1 file for BMW 4 Gran Coupé-series 28i 245 hp
Target +0 hp. Custom development for your engine.
Chip tuning for BMW 4 Gran Coupé-series 28i 245 hp ECU
BMW 4 Gran Coupé-series (2014 - F36) 28i 245 hp — premium petrol engine of the passenger segment of the BMW Group (Mini, Rolls-Royce, BMW Motorrad) group (Германия, 1916). Stage 1 chip tuning raises power from 245 to 280 hp (+35 hp, +14%) and torque from 350 to 420 Nm (+70 Nm). This engine ships with different ECU variants: Bosch MEVD17.2.4, Bosch MEVD17.2.9. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. The ZF 8HPxx TCU is calibrated with a separate file — torque limiter and shift maps for Stage 1. In the CHIPOK database: 3 configurations · 3 ECU variants. The 2014 generation — mid-generation petrol ECUs (MEDC17/MEVD17/Simos PCR), OBD flash on production revisions.
BMW's slogan is “Sheer Driving Pleasure”. The factory calibration on BMW petrol engines is conservative, leaving headroom for Stage 1 without hardware changes. Mid-generation petrol models use standard OBD flash. Third-party flash platforms are an industry of their own for the BMW community.
On older and mid-generation BMWs, Stage 1 is flashed over OBD without Bench. The BMW community is renowned for active tuning and a large pool of available Stage files. Stage 1 on BMW usually stays within the standard timeframe, with no particular difficulty on the standard models. High-output engines deliver a solid gain with Stage 1 on stock hardware. The BMW premium segment is a high-output platform with Stage 2 potential. The hardware headroom allows a confident move to Stage 1 without changing the turbo.
The TCU rarely needs recalibration up to Stage 1+, as the torque limiter usually copes with the Nm gain. The gearbox comes in versions by torque class, so its tolerance depends on the engine. BMW's main gearbox is a modern multi-speed automatic.
Frequently asked questions
How much does the power of the BMW 4 Gran Coupé-series 28i 245 hp increase after Stage 1?
The Stage 1 gain for the BMW 4 Gran Coupé-series 28i 245 hp is 35 hp (+14%) over the stock 245 hp, for a total of 280 hp. Torque rises from 350 to 420 Nm (+70 Nm).
What is Stage 1 chip tuning for the BMW 4 Gran Coupé-series?
Stage 1 is a software optimization of the factory ECU firmware of the BMW 4 Gran Coupé-series with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +35 hp with no hardware changes.
Do you need hardware changes for Stage 1 on the BMW 4 Gran Coupé-series?
The high-output BMW 4 Gran Coupé-series 28i 245 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.
What is Stage 2 for the BMW 4 Gran Coupé-series 28i 245 hp?
Stage 2 on the BMW 4 Gran Coupé-series 28i 245 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Which control units is the BMW 4 Gran Coupé-series 28i 245 hp built with?
The BMW 4 Gran Coupé-series 28i 245 hp comes with 2 ECU variants: Bosch MEVD17.2.4, Bosch MEVD17.2.9. Calibration is done for the specific unit after the revision is identified.
What does remapping the ZF 8HPxx gearbox give on the BMW 4 Gran Coupé-series 28i 245 hp?
The ZF 8HPxx 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 BMW 4 Gran Coupé-series remain valid after Stage 1?
After remapping the BMW 4 Gran Coupé-series, 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 BMW 4 Gran Coupé-series?
Reading and writing via OBD takes 25-30 minutes on the BMW 4 Gran Coupé-series. 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 BMW 4 Gran Coupé-series?
Before Stage 1 the original of the BMW 4 Gran Coupé-series 28i 245 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the BMW 4 Gran Coupé-series 28i 245 hp cost?
The remap price for the BMW 4 Gran Coupé-series 28i 245 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.