Have the yellows as well, very minimal increase of NVH, bear in mind that I did all of the Group N mounts at the same time.
One of the best and cheapest mods that you can do.
Plus you get a bit of 4th gear whine on deceleration which sounds porn!

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2015 Forester XT Premium
2020 VW Tiguan Allspace
teejay: If I wanted a comeback Id wank in front of a fan