477 HP Stage 1 Software | M340i/540i/740i/840i/Z4 M40i part-category-engine Installation NotesProfessional installation recommended for
Description
Installation NotesProfessional installation recommended for precise alignment
and are unmatched in quality
Always support the deck during install
Matching Warranty Option $1000
and enthusiasts demanding top-tier craftsmanship
477 HP Stage 1 Software | M340i/540i/740i/840i/Z4 M40i part-category-engine Installation NotesProfessional installation recommended forCalculated Flywheel Power: OEM Stock: 420HP 463TQ Tuned 93 Octane: 477HP 516TQ Measured Wheel Power: OEM Stock 345WHP 380WTQ Tuned 93 Octane: 391WHP 423WTQ Exhaust overrun option
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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