I posted a thread on here a few months ago about brighter headlights. My opinion of the silverstars have since changed (for the worse). I've run the Silverstars in 4 vehicles (a '92 camry, '94 camry, '95 Land Rover, '99 Land Rover) and yes they were whiter and brighter. But as it turns out, they do in fact burn out faster. I wrote a complaint to Sylvania just this week, and they responded telling me that the higher performance comes at a cost in terms of lifespan (and a cost in your wallet). The blue coating on the bulbs shortens the life. They recommend replacing your silverstars once a year (no thanks!). There is a FAQ section on their website that says the same thing.

What I DO LIKE is Roger's (4Crawler's) wiring harness upgrade. That made a HUGE difference in light output and my headlights look as bright as any newer vehicle (with exception of HID). And this is with old crusty 6054 housings that are years old and not high performance. I bought the Hella Vision Plus H4 housings (they came with bulbs too) but only installed one lamp. The lighting is brighter yet with the one Hella and the bulb it came with as compared to the OEM 6054 light. I was going to take pictures but it's really hard to capture the effect. The Hella has a more defined beam cut-off so you can focus it higher and not blind oncoming traffic. I also bought Silvania Silverstars to put in the Hella housings as my final test, but I will be returning those. I refuse to buy new bulbs every year at $40-$50 a pair.

The biggest impact was the wiring harness. The second biggest was the Hella's. The headlights are already so white (vs. the old yellow looking light) that I don't see how the Silverstars could of been any better and I'm not going to waste the money to find out.