Does anybody realize that AMR is Andrew Nam's (from Minnam Racing) new company? The Minnam kit has and still is the premiere kit on the market. So we can probably expect this new kit from Andrew to perform even better. The price is higher, but look at the stuff it includes that's not in the Minnam kit: aerodyne turbo, new intercooler design, AMR fuel management (whatever that is) replaces AFC, SYMS hood scoop, boost guage, and factory catalytic converters.
Plus, having your turbo kit pass CARB certification is not a cheap process.