you need one $100 map sensor. MAFS cost a lot more and so does the selin. I like the simplicity and flexability of MAP. Its a myth that you need to retune the car with a change as small as a air filter with MAP. Fact is even with maf you need to retune if you make a big enough change. Case in point, more often than not you have to retune when you get bigger throttle bodies regardless of MAF or MAP. Actually you will notice a change in AF if you from single intake to dual intake in ADD mode even with the selin. sometimes you have to retune for that was well. Sooo IMO I would rather go standalone and here is why >>> The commonly recommended TUNABLE MAF solution costs... Nistune hardware installed in ecu $350 Nistune license $200 WB O2 dual channel $375 Blitz boost controller $600 MAF x 2 (used) $200 Selin translator $270 Total is $1995 Standalone MAP solution >>> Haltech pnp $1800 wb o2 dual channel $375 MAP sensor $100 AIT sensor $40 BC solenoid x 2 $200 Total is $2515 For that $500 you get better knock control, better logging, double the resolution and I daresay better boost control and expandability that nistune cannot touch. I would go MAP with todays solutions no question. Harry
Formerly yellowzxtt
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