I truly appreciate the timely response. After I asked you, thought I'd ask the dealership for part# of the H&R spacers they use as part of their $575 upgrade package. You're NOT going to believe this. Between the time I asked the question in forum and you responded, I received an email from Tico (Manager of Manhattan Motorwerks), "I am happy to tell you it has the spacers, at no extra cost!" The entire story defies belief. Went on the road, 23 May, '19, with TECHART Progressive Lowering Springs ($2,850), GIAC Performance Calibration ($2,495), H&R Wheel Spacers 7/15mm ($575), BMC High Flow Air Filter ($548), and came back to dealership on 4 June w/600 miles on it. They reset computer and replaced the air filter. We discussed it and it went back in for $1,500. Since it's CPO - 43 more months of original warranty and 2-years of CPO warranty. $80K The rest of the discussion came about because I didn't understand about the Springs. Researching those lead me to this. Car looked REAL familiar. Questions led to reinstallation of GIAC tuning package....