BMW · Power Calculator

BMW 3 Series E46 - 1998 - 2005 318i 136hp Stage 1 Chip Tuning · ECU Remap

Name: BMW 3 Series E46 - 1998 - 2005 318i 136hp Stage 1 Chip Tuning
Brand: BMW

Catalog reference — not a measured result for this vehicle.

How much bhp does BMW 3 Series E46 318i 136hp chip tuning add?

Catalog reference: power 136 → 148 bhp, difference +12 bhp (9%); torque 180 → 195 Nm. Actual results depend on vehicle condition and measurement.

Power136 → 148 bhp+12 bhp (+9%)

Torque180 → 195 Nm+15 Nm (+8%)

Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.

Stage 1 Remap Stage 2 Remap Pop & Bang Speed Limiter (Vmax) Removal DTC / Fault Code Removal

Get a Quote

BMW 3 Series E46 - 1998 - 2005 318i 136hp

Book an appointment Find a centre

Reversible: Yes, the original software is kept

BMW 3 Series E46 - 1998 - 2005 318i 136hp — Stage 1 Remap

Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.

BMW 318i Stage 1: all generations →

Stage 1 Remap

Software that optimises the engine's power and torque maps within safe limits.

Stage 2 Remap

Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.

Pop & Bang

Software that creates exhaust crackle on lift-off.

Speed Limiter (Vmax) Removal

Removing the factory top-speed limiter from the software.

DTC / Fault Code Removal

Switching off selected diagnostic trouble codes (DTC) in the ECU software.

OUTSIDE TÜRKİYE?

Where can this be done near you?

Prime Chiptuning applies the software at its own centres in Türkiye. Abroad, our partners carry out the work with the same files, and workshops can order the file directly.

ECUs used in BMW vehicles

If you know your ECU family, its page lists exactly which solutions are available for it.

BOSCH EDC16C31 BOSCH EDC16C35 BOSCH EDC17CP02 BOSCH EDC17C41 BOSCH EDC17CP45 BOSCH EDC17C56 BOSCH EDC17C06 BOSCH MG1CS003 All ECU families →

BMW 3 Series — Power Calculator

Engine	Power	Gain
316i 115hp	115 → 126 bhp	+11 bhp
318D 115hp	115 → 145 bhp	+30 bhp
318i 118hp	118 → 131 bhp	+13 bhp
318i 143hp	143 → 156 bhp	+13 bhp
320D 136hp	136 → 168 bhp	+32 bhp
320D 150hp	150 → 183 bhp	+33 bhp
320i 150hp	150 → 165 bhp	+15 bhp
320i 170hp	170 → 185 bhp	+15 bhp
323i 170hp	170 → 185 bhp	+15 bhp
325i 192hp	192 → 200 bhp	+8 bhp
328i 193hp	193 → 209 bhp	+16 bhp
330D 184hp	184 → 220 bhp	+36 bhp

Frequently asked questions

How much bhp does BMW 3 Series E46 318i 136hp chip tuning add?

Catalog reference: power 136 → 148 bhp, difference +12 bhp (9%); torque 180 → 195 Nm. Actual results depend on vehicle condition and measurement.

Will chip tuning damage the engine?

No. Values stay inside the safety margin the manufacturer leaves; engine, gearbox and turbo limits are not exceeded. Every file is verified with a road test and data logging. If the car needs maintenance first (worn injectors, blocked filter, weak clutch) we tell you before starting.

Will my fuel consumption go up?

With the same driving style it usually drops, because you hold the same speed at lower revs and less throttle. If you use the extra power, consumption naturally rises. It is down to your right foot.

How long does it take? Do I leave the car?

Most cars take 1–2 hours and you get the car back the same day; no need to leave it. Some models need the ECU removed, which takes longer — we tell you when booking.

Can I go back to stock later?

Yes. The original file is read and archived before any work. We restore the factory software free of charge whenever you ask.

Does it void my warranty?

Changing engine software can affect the manufacturer warranty. If a dealer finds a fault to be software related, they may refuse that claim. We want you to decide knowing this. Your original file stays with us and can be restored before a dealer visit.

Will it pass the roadworthiness test?

Stage 1 power software does not touch emission hardware. Work on emission systems is offered only for uses permitted by law; road use and inspection compliance remain the owner's responsibility.

How much does BMW 3 Series E46 318i 136hp chip tuning cost?

Price depends on the vehicle, the ECU and the solution chosen. Send us your vehicle details on WhatsApp and we will quote straight away. Inspection and measurement are free.

How is the work done?

We scan for faults and read the original software first. The file is adapted to your car's hardware, written, and verified on a road test. The original is archived.

⚠ Software work on emission systems is offered only for uses permitted by applicable law (motorsport, off-road use, export, fault diagnosis, etc.). Road use and inspection compliance of the vehicle remain the owner's responsibility.