I am thinking to buy Injen CAI. I wanted to know if anyone have the instructions for it?
Trying to debate between the 3rd Gen of stillen and the Injen.
Stillen 3rd gen requires some work and cutting. Does Injen requires anything like that?

I have 2007 G35S

 

The answers to your questions lie in the search button.
But since you're new... the Injen does not require permanent modifications like the Stillen 3G does, however you will be replacing your washer fluid reservoir with a smaller one supplied. Injen should have instructions on their website.

Welcome aboard.

 

Thanks Q8y drifter. I did search today but could not find any clear instructions on how to install.
Would you know if it will require bumper removal? or can it be done through tire wall?

Thx for your response