A custom tune is the best way to get the most out of the system.
This is for any M50 based VANOS motor (M50TU, M52, S50, S52) with OBD1 (Bosch 413 or 506) electronics.
Please be specific with modifications in the notes section. Also, please see our notes on cam timing to get the most out of your system.
Also note that there are multiple versions of various injector flow rates. The injectors MUST be high impedance. If you aren’t sure what injectors you have, or aren’t sure of the compatibility, please contact us to confirm. Pictures of the injectors, especially if it includes a part number, will be helpful.
We can use injector flow rates not listed here, but please email us first to make sure we have a good starting point for the application.
Please be aware that there are fake 803 MAF’s on the market as well. Make sure you get these critical parts from reputable vendors.
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