KYBs - Great for a stock OE replacement or a car with light lowering springs (Eibach)
Tokicos - Great for either a heavy suspension setup or a mild suspension setup - these are the least that can be used with Intrax springs or coilovers
Konis - Insert into any OE style strut housing and are arguably the best setup. These are preferred with track cars so you can make them stiff on the track and soft on the street, though with stiff springs the soft setting will result in a pogo effect.
We are working on some new struts that are stiffer then Tokicos but don't require the modification of the Konis.
For other suspension mods you're only limited by your wallet. The following are common:
Strut Tower Brace
H Brace (reinforces the junction box of the rear control arms)
Tubular Rear Control arms - Replaces the stock control arms with something lighter and stronger
Quaife! - This will have the biggest affect on handling over anything
Swaybars - Mix and match for a stiffer car. The bigger the back bar and smaller the front bar, the more oversteer and vice versa.
Polyurethane bushings - Much stiffer than their rubber counterparts
Knuckle braces - Reinforce the ears on the rear knuckles
And most important.... TIRES!
A car with the best handling suspension in the world can get lapped by a Geo Metro if it's running tires that are not up to par. Tires should be your first serious suspension mod.
Personally, I also consider brakes under suspension as they are basically one unit when tracking the car and will also affect how the car reacts. Brake options:
- 13" front Upgrade PBR
- 13" Front Upgrade Baer w/ lines
- 11.6" Rear Brakes help to flatten out the car during track event braking
- Bias plugs (do the same as above to a lesser extent
- stainless steel brake lines - make the brake feel a whole lot nicer than they are
- 11" PBR brake kit - great for a part time street/ part time track car
Have a look under the suspension section of Midwest SHO and SHO NUT and you'll find anything you could ever think of needing.
