Anybody got maf scaling for a injen intake system? I'd like a nice staring point. Still kinda new to tuning.

 

Just figure it out yourself. The stock MAF housing is 2.75". What size is the Injen?


If its the same as stock then you won't need to scale the whole MAF curve. Just tweak it to get your fuel trims in order.


If it's bigger then stock, for example 3", then you just need to figure out what percentage difference it is.


3"/stock 2.75=1.090909090909091


So you would just multiply your whole MAF table by 1.090909090909091 and go from there with getting your fuel trims together.


But, you need to find out exactly what the diameter of your Injen MAF housing is.

 

The maf is stock but it has a cone style filter and an aluminum pipe to the turbo. I would assume it would have to be rescaled for that. I had a k&n style air intake and it made my car surge and slow. I took it off and replace it with the injen front mount and piping kit.