I bought my 225 in May in Houston and have worked there until last week. It has about 108k miles and was maintained religiously by the previous owner. The car rides and drives like it has 50k miles. Since I bought it, I installed new plugs, new stock DV, air filter and a new ecu with an APR 93 program. There was relateively moderate lag and the turbo would hit hard. I finally returned to Denver last week and my car has lost a lot of power. I had time to install a boot gauge and am getting a steady climb to 18 psi with a decline to 15 by redline. Since I could not tell what it was in Houston, I am at a loss. The car has a LOT more lag and I am not happy with the performance level. I am going to do a boost leak check this week but do not know what the APR boost levels should be. I suspect I also need a new program for 91 octane but do not know how much that would cost to change over. I also assume the car would perform much better with a turbo back and intake. Is there anyone in Denver that could help me log the car to see if the program will work before I go buy another or if there is a tuning shop in Denver that could take care of this accurately and for a reasonable cost? I want to make sure the systems are working properly before I blow money on parts. Thanks for your advice.