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BMW 650i 4.4T 407Hp - Stage 1 & 2 |
Upgrade stages from 470 to 490 Hp for the 4.4T engine found in BMW 650i.
Stock engine specs: Capacity: 4395cc Power: 407hp
Stage 1: Engine upgrades: -Stage 1 Software upgrade Engine performance: Power: 470hp
Stage 2: Engine upgrades: -Full 76mm exhaust Engine performance: Power: 490hp
Software upgrades: Boost control is achieved using the OEM ECU and N75 valve. Use of 95/100 octane fuel is mandatory.
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