Ok, with my Calmini front bumper, my front end is really sloppy now. I want to put in new Torsion bars to help fix this problem and need some advice on which ones are best, and what the differences are. Here are options I've found:

SLR's 300M bars $300. Desc: Our 26mm single stage torsion bars are manufactured from 300m aircraft quality material and provide 360? of torsional twist. They have a 20% stiffer spring rate than stock and are superior over conventional 4340 torsion bars. Our bars help eliminate bottoming out both on & off road. They improve handling and control in any situation. When combined with tuned Bilstein shocks, they provide an unmatched ride. To prevent corrosion, our bars are epoxy coated. Sold as a set of two bars.

Nismo 4340 bars $200. Desc: Conventional 4340 torsion bars made by Sway-Away for Nissan Motorsports. Bars are 26.5 mm in diameter and are larger than OE torsion bars. OE Frontier torsion bars are 25 mm in diameter and OE Xterra torsion bars are 24.5 mm in diameter. They are approximately 30% stiffer than stock. Sold as a set of two bars. They also say these bars are 'not for street use'

Calmini HD Torsion Bars, $220. Our high performance torsion bars are the solution to a soft front suspension that sags or bars that just won't hold ride height any longer. The larger diameter bar has a 20% heavier rate than stock and requires a lower preload which results in superior ride quality over stock.

SLR also sells a 'Torsion bar anchor' for $120 that they say replaces the anchor point that can rip out with beefier tbars on. Anyone think there is a need for this?

Thanks for any suggestions/advice. Any other options for Tbars out there?