Dinan Stage 4 Performance Engine Software - 1997-1998 BMW 540i
- More Power (with intake and air flow meter): Max gains of +23 HP and +25 lb-ft TRQ
- 50 State Emissions legal; CARB EO # D-176-26
- Top speed governor removed
- Rev-limit increased
- Improved throttle response
- Smooth and predictable power delivery
|Dinan Point Value||3|
|Factory Rated HP||282|
|Factory Rated Torque (lb-ft)||310|
|Labor Time (Hours)||0.5|
|Max HP Gain||23|
|Max Torque (lb-ft) Gain||25|
|Product Type||Engine Software|
|Required Items||Dinan Cold Air Intake (NLA) and Air Flow Meter (NLA)|
This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturers application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number.
The following vehicles are considered Emissions Controlled Vehicles:
- 1966 and newer U.S. manufactured California Certified vehicles
- 1968 and newer U.S. manufactured Federally Certified vehicles
- 1968 and newer Foreign manufactured vehicle
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Some parts are not legal for use in California or other states with similar regulations.