I need an upstream o2 sensor for my civic and NAPA quoted me $130 for a direct fit o2 sensor; $70 for a universal. I found a direct fit o2 sensor for my model on buyautoparts.com for $69. they seem to have a good warranty and their ratings on ebay are excellent. Should I go for it? I don't want to get a crappy product, but it just might work as good as any other.