When you're sat in the car with no passenger the right hand front will squat slightly more, especially if you're a big unit , this will definately cause excess rubbing in the arch. Coupled with normal spring sag and poor alignment. There could be excess wheel camber on the right side more than the left.
I would take the car to an alignment center and have them check and adjust with YOU sat in the car.
I'd go Poly but not Powerflex. I'm guessing your top mount is the later square type? There's just too much movement in those tops mounts for my liking, they're too slack. You could out the alloy bush holder and change it for an earlier round one? Loads on eBay and then you'll have more of a choice of bushes to try in the round ones.
I currently have an Australian Superpro bush but it was needed as it's slightly softer than the Powerflex yellow due to my Top mount rear bush being PF Black series and the mounts on the strut turrets are solid alloy IPD brackets!
If yours are still stock, then I'd go straight in with the PF yellow square mount. You won't get any engine vibration. I definately recommend stiffening them up though and fitting the PF purple bracket bushes. They remove about 80% of the engine brace play without compromising engine vibration.
To be honest, In my experience, you've gotta play around a little with the engine mounts as no two setups are the same and everybody's opinions are different.
I can tell you that I have absolutely no engine vibration and a solid engine brace. PF black series small rear top mount bush and Superpro blue front top mount (Round) bush.
It's a big improvement with a hell of a lot less engine movement, no excess vibration and great throttle response with smooth gear changes.
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