Upgrade jbl worth it?

was thinking about upgrading the door speakers with a set of Infiniti's. Maybe eventually the tweeters and sub. Hesitant on tweeters since I can't find a direct fit setup. Also hesitant on the sub cause I use the back seat storage area and don't want to give that up. Is it worth it or will those Infiniti's sound the same as the jbl's?

 

You'll notice a difference, but nothing like the improvement you'd get if you amplified a good set of components up front. Check out @Mr Marv's group buy. He's got killer deals on components and amps, and he makes baffles for the mids and tweeters so they fit without modification.
https://www.tacomaworld.com/threads/mr-marv-hybrid-audio-arc-audio-more-2017-tax-time-buy.482018/

 

Awesome. Thanks dude!