The MKIII Spyder is not generally available with a turbo, although recent news indicates one will soon be available.
Aftermarket kits are available:
- The TTE Turbo kit from Toyota. This one has approval from Toyota and doesn't loose your warranty on the car. Its ~184bhp and they also add various additional bits of bracing to the car.
- The Hass Autoworks kit - Based on a GT-25 Turbo. Probably one of the first independent tuner kits - Hass are based in the USA. There's quite a long wait for kits to be delivered, but there are at least three here in the UK - Slacey and Ekona both have this kit. This one produces good power figures from low boost due to the turbos relatively large size - 250bhp is easily possible.
- The Power Enterprises kit. This is the one that Rowland and I both have - it's based on a small IHI turbo and is designed to be bolted on with minimal effort. The kit I've got has had some customisation and includes a chargecooler and fifth injector. Its running 220bhp @ 7psi - I think the kit as standard out of the box offers 190bhp.
Source: http://www.imoc.co.uk/forums/viewtopic.php?t=26270&postdays=0&postorder=asc&start=15
