What are you going for, and is CA CARB legality a concern for you?

To get the best results, you will want to piece together a setup that's ideal for your needs. Hell, I'd like a Garrett GT30R with an equal length manifold, drag or HKS intercooler, Hondata or AEM EMS, and various other bits and pieces according to personal taste at the time. But such and ideal setup could cost upwards of 5K properly tuned and such...