i've done a lot of research between the accord and TSX.. turns out the suspension is the SAME.. so all u guys saying the accord is better its actually not.. they are the same!! They use the same part numbers for the springs, as far as shocks go no aftermarket has started to make them yet. Accord is more powerful but yet its a V6 with a heavier engine. I personally would love the TSX beacause of the styling and the refinements of the interior, and definatly pick the one with the navigation. HIDs are standard with the TSX and after a few mods i'm sure it wont be hard to keep up with an Accord in the 1/4