Are these better than Infiniti OEM?

Moog vs OEM?

 

Poly is "better" from a performance perspective yeah. Higher durometer rated rubber will deflect less under tension. However they do require a little maintenance occasionally if they start to squeak. Usually if you very liberally apply the grease to the ENTIRE bushing then it's not much of an issue.

If you lightly grease them you're in for a lot of noise though. I COVER them, and whatever you're pressing them into, literally EVERYTHING gets covered in grease (including bolts/washers/literally everything) then just wipe up the excess when it's all assembled.

 

I just wanted to add a little known fact that almost everyone is currently unaware of. The OEM rubber bushings, although known to inevitably fail often, play a specific role in the handling of how your G or Z handles at high speed at the compression rods bushing under the subframe base. Aftermarket Poly bushings benefit great in terms of longevity, but reduce controllability at the compression rod point. OEM rubber bushings are firmly pressed into place and provide an enhanced level of rigidity by keeping the compression arm under constant tension as opposed to drop in poly bushings with center tube spacer which allows greater movement of the compression arm itself. I've found that the Poly bushings are extremely efficient in the aid of drifting, but in straight line racing, can prove to be fatal. Simply put: imagine your elbow joint under a compression wrap. . .it always wants to return to a position with the least constraint. Then take the wrap off and what your left with is an elbow free to pivot at the joint. That is what happens at the compression rod bushing which is responsible for much of your suspensions rigidity. Pitch, yaw, and roll all are dictated to a certain degree at this one critical juncture. Everywhere is is less detrimentally effected by poly bushings replacement.

 

That is exactly why you can't tighten any of the suspension bushing with the suspension hanging from the car. Everything has to be under load (weight of the car sitting on the ground) when you tighten up bushings. You can end up with a weird floaty ride even on stock rubber if you aren't doing this.