I bought a 5 1/2 speaker and was told that I should go with a 6 1/2 instead. I got a deal with infinity so I can only go infinity speakers.

On crutchfield, the model below says it does not fit the 350z.

Infinity Kappa 60.7cs

Have any of you guys had experience with installing this model speaker in the front?

The infinity perfects 6.1 is overkill for me. I will never turn my music up that loud.