I love my PIAA bulbs! Sure , they are pricey but IMHO worth the money. I have a set that gets daily use (9004), and they are 2 yrs. old & counting. MUCH whiter light than OSRAMS, tho I haven't tried the Silver Stars....still waiting for a PIAA bulb to wear out!
"If everything seems under control, you're simply not going fast enough" --Mario Andretti
1995 E500 street car
1986 Porsche 944 Turbo S track car