Looking at upgrading a 99 9-5 with a 2.3t auto. The BSR stage 1 ppc unit offered on parts for saabs is what i am considering. Would like to know if anyone has any input on this product. What are the pros and cons? I am not looking to change the exhaust or turbo until I need to. Any input would be helpful, including other products. The BSR ppc for this car shows it will take the car from 170hp and 207 ft/lbs torque to 234 hp and approximately 280 ft/lbs of torque, and the only other part required is a high flow air filter. Feedback please?