Car was 5 yrs old with 25K when bought. Suspension was typical station wagon and a bit scary. Replaced all shocks with stiffer model, added front and rear sway bars, shock tower brace and under engine chassis brace and all season perfomance tires. Also turned-up the boost to 14 from 8.5. Car now handles great, brakes very well and with 222 dyno'd horsepower keeps up easily with all traffic. Car is excellent long distance cruiser as wheelbase and extremely comfortable leather seats encourage continued driving. Vehicle has been well maintained by independent volvo mechanic and has been very inexpensive to date. No rust but little driven in winter. Good for another 150K.
Seats, ride comfort and control, power.
Reduce low end turbo lag. Provide an overdrive on automatic transmisson for better hwy MPG.