I've had a APC strut tower bar on my car for some time now and I recently picked up a OEM GSR strut tower bar from a 1995 Sedan. My question is, should I keep the APC bar on the car that I bought for like $20 from a parts store a few years ago, or put the OEM bar on instead? Is there a chance that the OE bar is stiffer? I'm assuming better quality though. It appears to be hollow and lighter than the aftermarket bar. If my aftermarket part was from Eibach, Neuspeed, Mugen, etc this would be a no-brainer, but it isn't.

Thoughts?