Will swapping harmonic balancers cause any issues ????

In my mind, if it's a street car with just an occasional blast up in the higher RPM's, then a low dollar dampener will work just fine.

I have had many factory dampeners over the years on engines that had well over 100K miles on them and they were still spot on.

If it's going to see regular romps, then without a doubt it's way better to upgrade.

As far as comparisons, I couldn't tell ya, I usually look for reviews and folks that have used them like what's being asked here.

Sometimes high dollar, is just that, high dollar and nothing more.