BMW 5-serie 20i (1995) 170 hp — Stage 1 file (+10 hp)
hp
Stage 1 file for BMW 5-serie 20i (1995) 170 hp
Target +0 hp. Custom development for your engine.
Chip tuning for BMW 5-serie 20i (1995) 170 hp ECU
BMW 5-serie (1995 - E39) 20i (1995) 170 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 170 to 180 hp (+10 hp, +6%) and torque from 245 to 260 Nm (+15 Nm). ECU — Siemens/Continental MS43. Flashing method: OBD or Bench depending on the unit's protection. The 1995 generation — old-era petrol ECUs (ME7/ME9/MED9/Simos) with easily readable memory.
M GmbH is BMW's performance division, building M engines since 1972. Third-party flash platforms are an industry of their own for the BMW community. Mid-range BMW turbo petrol engines are a mainstream Stage 1 subject with a proven base. The BMW petrol range spans the mainstream segment and the sporting M-series.
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. Stage 1 on standard mid-range BMW petrol engines delivers a noticeable gain with no hardware changes. The mainstream base is the most refined chip tuning segment in Europe. The factory calibration is conservative, with headroom for Stage 1 and no hardware changes. Mid-range engines form the backbone of the range, and Stage 1 preserves engine life.
Frequently asked questions
What power gain do you get after chip tuning the BMW 5-serie 20i (1995) 170 hp?
After Stage 1 the power of the BMW 5-serie 20i (1995) 170 hp rises from 170 to 180 hp, a gain of 10 hp (+6%). Torque rises from 245 to 260 Nm (+15 Nm).
How does Stage 1 differ from stock on the BMW 5-serie?
Stage 1 chip tuning of the BMW 5-serie is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +10 hp with no hardware changes.
Can you do Stage 1 on the BMW 5-serie 20i (1995) 170 hp?
Yes, Stage 1 for the BMW 5-serie 20i (1995) 170 hp stays within the factory limits for boost pressure, knock and temperature. On a healthy engine with a serviced turbo and injectors there is no risk.
How much does Stage 2 add on the BMW 5-serie?
Stage 2 on the BMW 5-serie 20i (1995) 170 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Which ECU is fitted to the BMW 5-serie 20i (1995) 170 hp?
The BMW 5-serie 20i (1995) 170 hp ECU is the Siemens/Continental MS43. Production versions support OBD access; locked variants require Bench (BDM/JTAG).
What happens to the BMW 5-serie warranty after chip tuning?
The factory warranty of the BMW 5-serie 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 BMW 5-serie take?
On the BMW 5-serie 20i (1995) 170 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 BMW 5-serie?
Yes, the original ECU firmware of the BMW 5-serie 20i (1995) 170 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 BMW 5-serie?
Stage 1 for the BMW 5-serie 20i (1995) 170 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.