MAF location???

[fliprayzin240sx]

Well reason you need a tune is because the ECU is calibrated a certain way. It takes the signal a certain amount of time to get to the ECU, process that data and then make the fuel correction in according to the air coming into the engine. Now that the maf is closer to the TB, the ECU doesnt have the same amount of time to process that data and make that correction. This is where tuning comes to play to make up for it. Theres a certain distance that the maf have to be from the TB whre the ECU can still compensate for it, just cant remember the distance exactly.

Anyways people already stated the issues that you can run into running a blow thru setup. The other thing that nobody has brought up is the chance that if your turbo goes doo-doo and starts spitting oil into the charged side, theres a good chance that the oil will fuck up your maf too. So keep that in mind.