Looking for advice on making custom bandpass crossovers

[Zertman]

I am trying to make custom bandpass crossovers for my car's stock rear speakers. The speakers are 2-ohm 6x9 speakers. I am looking to make simple 1st order Narrow Bandpass 90-1000Hz passive crossovers. According to this bandpass filter calculator, I need a .34mH coil and 804uF capacitor. I can't find those exact values on amazon but I found 1000uF 35volt cap with radial leads and a .35mH Jantzen Inductor. Wish I could link them but it won't let me.

What would be the new crossover points for these parts? Would these parts work ok for my application? If not, what parts would?

Thanks.

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[maylar 10+ year member]

About 79 - 910 Hz. I'd go higher freq on the upper end, about 3KHz works for rear fill. Also check the tolerances of the parts you pick, most caps that big are +80 / -20%.