Review on Bosch Automotive OE 9600 Fine Wire Double Iridium Spark Plug - Single by Jack Harrell

I buy Bosch spark plugs because they are official Hendrick Motorsports spark plugs and if they are good enough to take this team to victories and championships they are good enough for mine Cars. Great price and fast shipping from Revain, they were easy to install on my wife's Scion XB and definitely improved performance and fuel economy. Not a BIG difference, but I could tell. The fact that these iridium candles last up to 100,000 miles is a nice plus too - you pay a little more, but they give you more power and fuel economy than your stock candles for a while. I'm glad I bought them and will be buying more soon to replace the spark plugs in my truck.