I recently went with an Agency Power Exhaust on my 370z and I'm quite happy with it. The only thing I am having an issue with is the pipes touching/resting on the rear cross member.
After some adjustment I was able to get them off of the cross member, but while normally driving it bumps/rattles. I grabbed the rubber hanger and noticed that it had a decent amount of play and by squeezing it together I could get a much better clearance.
I have not used polyurethane and would like to know from those that have what I can expect (if anything) in the cabin while normally driving and at WOT besides it not hitting the cross member
. Also does anyone know what size I should go with off the top of their head? I brought the car down unaware there were different sizes
