My experience with door bushings is here : 'Just send it' door bushings - #45 by AndyGadget where I 3D printed my own in a couple of sizes. I could definitely detect a difference between OEM, tight and slightly looser fit. At the end of that post I say that I was sticking to the OEM, but a few posts later went back to the printed ones as I did think the car felt tighter with them.
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