My dad wants to get a Grantelli CAI for his 2006 GT, the one that does not require a tune (warranty issues).

He wanted to know if it helped gas mileage at all, and any thing else it would help.

I need an answer quick.

thx.

 

I gain close to 1 MPG, I know others might be doing better, then again my driving habits don't help, LOL

All Info and issues on the Granatelli CAI can just about be found in this posting https://mustangforums.com/m_1786157/tm.htm