So the set of tires that I have on my 18s I've had for about 6 years. They still have about 1/4 tread or more. They are Riken Raptor ZR 245/45ZR18 96W. Are they good tires? I don't know much about tires and I'll soon need to buy a new set. Only reason why they have lasted as long is I switch over to my stock wheels for winter months.

Second question. Is there any retailer that sells a performance chip for the 22re or do you have to program your ecu?

 

Check tire rack for tire reviews they are usually pretty good.

Any "chip" or reprogramming of the stock ecu won't do much. The toyota computer is seriously limited. If you want to gain performance swap out the stock ecu for a stand alone unit such as megasquirt or sds.