In this scenario the owner is likely racing with the factory setup, and rightfully wants to upgrade the factory brakes. It is not mentioned if the rest of the factory suspension is still intact but if it is, this may contribute to the reason why the owner is so hard on the brakes. If the dampers, control arms, and relative bushings are in optimum condition, and the alignment is properly setup, and functioning correctly than the brakes, are likely the only component in need of replacing, however if this is not the case then likely by upgrading the brakes the suspension will feel more controllable, but that will be due to the increased braking ability, not the complete ability of the suspension to function at its maximum capability, or to be tuned for changing environments, not enabling the full potential of the upgraded performance big brake kits ability to actually be experienced by the driver because of the lack of performance of the worn factory suspension.
o Appears this S2000 has a worn factory suspension, and will require suspension upgrades.
o Factory S2000 suspension components lack the adjustability desired for racing.
o When entering your S2000 in competitive motorsports the suspension requirements should be addressed along the the braking needs.
o Consider how upgrading your S2000 suspension will aid your racing requirements, and what components will give the desired effect if you are not going to upgrade your entire S2000 suspension.
o Look at the springs, and dampers (coil-overs) on your S2000 and your comfort , and technical prowess for adjusting basic or complex suspension components...more basic = less adjustable.
o Assess you current control arms, ball joints, tie rods, end links etc. then decide if these components need to be replaced and what level of adjustably would you prefer for your suspension.
o Consider the size of rims you have on your S2000 as to buy a big brake kit that will fit your wheels.
o When using adjustable suspension components on your S2000 for racing make a baseline spreadsheet after your suspension alignment has been set, then note the effects of the adjustments you make to your new performance suspension upgrades, and how your S2000 suspension reacts.
o S2000 suspension too soft for drifting, the S2000 suspension is working just not properly for desired environment.
o Improve your S2000 suspension drifting ability by forcing the tires to the ground, while still having the rebound, dampening ability your S2000 suspension needs for control.
o Upgrade the brakes on your S2000 for the stopping power you will require with a drifting S2000
o Evaluate all suspension components for upgrading, from the basics of your S2000 suspension (springs) to the more intricate S2000 suspension components like dampers (coil-overs), and control arms.
o Install new springs, dampers, control arms and brakes(with associated components) onto your S2000 suspension, creating a highly tunable S2000 suspension and a drifting terror to be reckoned with.
o Proceed to enjoy the newly found ability of your Honda S2000 in any and all local competitions, or just cruising the local boulevards.