Stock sway bar or Aftermarket?

I'm going to run one of the hollow Hellwig bars on the front of my Dart as soon as budget allows. Dave is a sponsor here and their bars are a total bolt on for my car.

I got such a good deal on this one, that is why I bought it.. I've looked at the others though...

I got lucky (I think) I bought a stock 66 V8 front sway bar from a 66 Barracuda and put it on my 66 Valiant Sedan, Wow ! Made a big deference for my none sway bar early A body.

Im curious to feel the difference this summer! I cant wait!