Nice car. I have the same one, EVO IV and silver. Just wondering, how is the TD06? What kinda maximum HP is it rated for? I will be thinking of changing the turbo but not sure which one to go for. Either a TD06 or maybe a HKS 3037 or possible 3240?
The TD-06 is great, slight bit of lag but comes on boost at 2700rpm and hits max boost at 3500rpm. I'm not sure how the HKS ones compare in size and power delivery, bear in mind that with these turbos you will need a new manifold and an external wastegate which really push the price up.
For some detailed info look at the thread in the Engine Tuning section called Turbos- Does anyone really know?