imo, i find the rarb and rear strut brace very good mods for these cars. the car just becomes much more predictable (even if creating a little bit of oversteer on lift off, which can be controlled by not lifting off approaching mid corner)...i'm a fan of the ultra racing rarb and trd/3 point rear brace like the others said..for handling its coilovers, tires, bushings, rear strut brace, rarb, adjustable pan rod, front lower bar a front lower bar is nice, but depending on the brand, how low your car is and where you live may touch speed bumps, undulating road, exhaust system, etc...if you make the front too stiff, it may go back to a bit of understeer, so an uprated front arb would need to be fully thought out before being installed.