If you're in the market for suspension upgrades you'll have to take into consideration a few things: * How low do you need * Comfort * Purpose I rate those pretty highly. Firstly if you're bottoming out, you're going to need new bump stops. My car did that like crazy when I first got mine, and I discovered it had no bump stops in it at all. Second, aftermarket springs/shocks or coilovers? This point draws on the last two areas I named, comfort and purpose. Coilovers are usually attached to some form of racing or motorsport, kind of like if someone buys them they're made to do more than just road driving. A lot of people will say get coilovers, but consider the cost (research a few brands on a Google search) and consider the appalling lack of comfort you'll get from the ride. So my suggestion is that if you're not taking it any further than the road and value your teeth and spine functionality, go for a set of shocks like KYB's and maybe King Low's as a suggestion. A fourth area I didn't mention but something to be taken highly into consideration is Practicality. You'll want it low enough to feel good through the bends and sharp to drive, but still have enough stature to attack a speed hump or someone's inclined driveway. I've managed to pull this off in my ride. So if you're seriously into mods and want to research stuff for your car, ebay is a good place to start (after Googling brands of suspension and taking note of who actually caters for your model Celica). If you're still coming up dry on choice, you could always have a look on Yahoo Japan, because they'll sell a heap of stuff on there that was never an option for mods in Australia. Other physical places you might want to browse for ideas are Jap wrecking yards/shops, like Just Jap and Ichiban. They seem to carry a good stock of stuff that was made for Jap modifications but not necessarily Aussie cars. Food for thought.. now get digging! :P