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BMW M3 4.0 420Hp - Stage 1 & 2 |
The tuning stages vary from 439 to 446 hp for the 4.0 engine of BMW M3.
Stock engine specs: Capacity: 3999cc Revlimit: 8200 rpm
Engine upgrades: -Stage 1 Software upgrade Engine performance: Revlimit: 8200 rpm
Stage 2: Engine upgrades: -Free flow air intake Engine performance: Revlimit: 8200 rpm
Software upgrades: Use of 95/100 octane fuel is mandatory.
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