Amazon.com: Pioneer TS-D1720C 6.75-Inch D-Series 280-Watt Speaker Package: Electronics

trying to find some nice speakers for the front for like $150-200. going to amp them as well.

 

They are bigger in diameter than stock speakers to my knowledge. Unfortunately I do not know the mounting depth of the doors in the Fit yet. However, 2.5" is not very deep. You will want about .25-.5" of clearance if there is a pole vent on those speakers.

I would think you can make them work with a spacer though. I am supposed to be picking up my fit today. If I do, I will pull the panels off this weekend to do some dampening anyway. I can take some measurements for you then if you still need them.

 

They should fit as long as you can build some sort of spacer ring. I used a ring that is around 7/8" thick and my mids need around 3" total without hitting the window. Depending on how beefy the basket is you might have to trim some of the metal as well.