The only thing that could be done to it to make the sensor show different voltage output based on flow (do you understand how a MAF works?) would be if they etch the sensor surface, the same thing PMAS does for our calibrated MAFs, so that they will support more flow. Hitachi makes the MAF, they only make it one way. I'm telling you now though you won't be happy with the results. Send us a unit, we'll send you back exactly what the difference is in the curve for this MAF vs. Based on how the ECU calibrates every function, the MAF voltage being the base unit of measure for nearly everything, the only thing this MAF could possibly do to change the way the truck runs would be to skew things towards lean. As state above the only time you'd need to go to a different MAF sensor is if the vehicle was making more power than the stock MAF could support safely. We will not be making a MAF calibration curve for that MAF sensor at any time as it wouldn't increase power or efficiency in any way. If there is any verifiable (read that as Engine Dyno proof, not Chassis Dyno) then it is only because the truck would be running outside of tuned parameters (ie. This is not only uncontrollable, it is completely unsafe.
Those voltage readings are the direct link that all other calculations are based on in the ECU. If your truck is running any differently after you plug in this MAF, it will be because the MAF sensor voltage readings stray from the stock sensor. Side note: Nitrous kits are not going to affect the MAF reading as nitrous is an oxidizer and adds oxygen so that you don't have to flow more air to make the same HP, you just need to flow the fuel to support it. We recommend using the PMAS sensor for forced induction vehicles that are running over 400whp so that you have stable and reliable voltage coming from the MAF. The aftermarket PMAS MAF sensors we have are going to show roughly 2.3v at that same power level. You can watch it in Cipher, if you get to the 4.8v area on your MAF the ECU will fuel cut on you and the vehicle stumbles. Every car and truck is a little bit different, so there is no exact HP number the stock MAF will read correctly too, but it's right around the 400whp range. The only time you'd need or want to upgrade your MAF sensor on these trucks (or cars) is if you needed one that would read stable air flow over the 400whp range. It doesn't allow for more air to get to the motor. The MAF is just a sensor, it doesn't make power. Do a search on the is snake oil.its been busted on numerous fourms from Mustangs to Titans, it does nothing.just another person trying to make themselves feel better about blowing the money by justifiying that it works.UpRev also makes these and her is a direct quote from UpRev:
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