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Old 01-07-2007, 11:11 AM   #6
SRQ Boxster
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Join Date: Jan 2007
Location: Sarasota Fl
Posts: 91
After installing the wheels, the ride was much more harsh at speeds over about 45-50 mph. and mainly from the front end. After checking my air pressure , I found my dealer had inflated them to about 40 lbs front and rear. I lowered the pressures to 29front, 36rear and now it feels much like it did on the 17's. I do have the standard suspension and as it sits now it is about an inch higher than a stock Box. It now needs to be lowered an inch for it to look right. I have orderd the H&R spring kit and will have it installed by next week if all goes well.
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