Re: Ford Racing CAI for 09 GT
They did run some tests a couple years back on the Ford racing,C&L and JLT cai's. The Ford cai is for sure the best looking but the C&L and the JLT both outperformed it. Most guys run C&L or JLT and its what I use.
If I can find the link I will post it for you. Also you don't have to run the 91,you can do the 87 but I wouldn't wanna switch gas grades everytime I change my tune.