1-1/8 & 1-1/4 front sway bar vs factory 7/8?

Pulled the trigger on the hellwig 5906 1-1/8 solid sway bar, i got to thinking about it and my current 7/8 sway bar is solid, so i cant foresee the 1-1/8 solid bar weighing much more than the 7/8. Was thinking about firm feel but why pay $100 more for the same size solid bar

Right on! You will definitely feel a difference with that bar.

The Firm Feel bar that tempts me is the rear bar. It's design is way different than Hellwigs. The sway bar is actually hung from the car's frame instead of mounting on the axle. The end links attach to a plate that is sandwiched between the axle and leaf spring.

Like this: A Body Sway Bars

I just don't know if it will work with my dual exhaust pipes. They may be in the way. Not only that, but they're pretty expensive. The Hellwig version is more cost effective.