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BMW 523i 2.5 177Hp - Stage 1 |
Upgrade stages up to 194 Hp for the 2.5 engine found in BMW 523i. Stage 1 upgrade, is presented below.
Stock engine specs: Capacity: 2497cc Power: 177hp
Stage 1: Engine upgrades: -Stage 1 Software upgrade Engine performance: Power: 194hp
Software upgrades: Use of 95/100 octane fuel is mandatory.
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