Specialty Z will socket and chip your ECU for $300 (that's what they are charging me anyway). But you would have to do without driving your car for a few days since they do not have core ECU's. If you give SZ the information on your car, it is my opinion that they will probably give you a better tune than JWT. SZ will "tailor" to your current mods versus JWT's "generic" chip. That said, I believe JWT is a great product and would be my choice way ahead of ASH and Z1. And 2nd on what Nixit said: Your performance will come from the increased boost, so you'll need boost jets or a boost controller. Best of luck.
