these are the ones I had on my celica before I upgraded.
Diameter(IN., CM) 6-1/4, 15.9
Impedance (OHMS) 4
Maximum Amplifier Power (WATTS PEAK) 200
Maximum Amplifier Power (WATTS RMS) 100
Sensitivity (dB 1W/1M) 87
Frequency Response (Hz) 40-4.5k
Mounting Diameter (IN., CM) 5-1/4, 13.4
Mounting Depth (IN., CM) 2-1/2, 6.4
and no they do not fit just in place, you need to make a custom bracket that will give them some depth.