It has occurred to me that the E46 M3 has a different fuel pump than the other 46s. Is this something I need to address? It would be logical that the S54 would have greater demand.
S54 swap DME flashing - $100
S54 swap CAN interface board (for proper A/C & check engine light) - $275
e36 SAP sim/secondary air pump simulator: $75 - standard or $170 - plug & play
e36 post-cat O2 sims: $115 shipped, plug & play
Oh boy !!!!!!! MO money !! ;-)
If staying NA you can do a walbro 190 made For the e46
NOT "huffed". Will be low back pressure exhaust (AA catless headers, Bimmerworld collector, and custom 3.5" exhaust) and two pulley underdrive system. I did a Walbro in my 07 Saturn Sky Redline when I went E85, and it dropped into the stock pump system. What is the E46 setup for the Walbro 190?
Not sure, I have an E36 S54 with a 255lph walbro. I think it’s overkill
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