Even the sportiest of sports cars come from the factory with a certain amount of compliance-or flex-designed into their bodies. This flex, in conjunction with the suspension, tires and the like, allows the body of your car to absorb the various imperfections of public roads (got potholes?). Too much flex and your car will be soft and doughy (like Jonny only slightly less snuggly). Eliminating the flex altogether will maximize the contact patch of your tires (good!) but at the expense of increased load, which results in more heat and accelerated wear (bad!). It will also make your fat ass jiggle like jello-and nobody wants to see that. In terms of a car's compliance, there is a fine line between rock solid abs and a muffin top, and alas, most OE's err to the side of everyday comfort in lieu of uncompromised performance. Silly, OE's!
Short of a complete cage and seam-welded chassis, there are numerous bolt-on methods to increase chassis rigidity such as braces-strut tower, lower arm, gacchiri (fender) and the like. One of the leading manufacturers for such braces (and as JDM as it gets) is the Okuyama company and its line of Carbing roll bars and body reinforcement parts. All of the Carbing braces affix to existing mounting points, eliminating the time and talent required to weld and bend tubing (we can lay pipe but not bend it).
It just happens that Carbing makes front and rear tower bars, a lower arm bar and a rear lower bar for Nads' soiled brown RSX. The install is so easy he did it all by himself-himself being Yamz and those Teinted lovers, Philip Chase and Nakai-san from Tein. This couldn't be more appropriate because Tein is Carbing's official distributor for both Americas (North and South!).
Lower Arm Bar
1. You'll need a lift to install the Carbing Lower Arm Bar. Don't try to jack up one side of the car as the torsional flex will twist the chassis and the Lower Arm Bar won't line up. | 
2. Now you can remove the eight bolts (19mm x2, 17mm x2, and 12mm x4) from their factory locations. |
3. Clean the chassis while you're down there to ensure a clear mating surface. | 
4. Have a friend hold the brace in place and reinstall all the bolts (don't tighten them yet). Once all the bolts are in place, you can tighten each bolt slightly (in a circular order) until everything is tight. Aight? |
5. Now step back and marvel at the finished product knowing that it will never be this white again. | |