Originally Posted by RDM3

the most expensive one was $10.59, but I came across Pulstar, 2 for $49.90! Why are they expensive? Are they that great? Here is the write up....

Pulstar Spark Plug
2000-2007 BMW X5

"PULSTAR PULSE PLUGS, SET OF TWO -- 14 mm, 19 mm Reach, 5/8 Hex, Gasket, 0.045 Gap, The Latest In Performance Ignition Technology, Comes With An Internal Pulse Circuit That Increases Peak Spark Current By Up To 20,000 Times As Compared To A Traditional Spark Plug, Delivers Up To 1,000,000 Watts Of Peak Power, Allows More Efficient Burning Of Fuel, Generates A Much Larger Spark At Twice The Speed Than Ordinary Spark Plugs, Provides More Power And A Livelier Throttle Response, Promotes An Increased Gas Mileage And Greater Horsepower To The Wheels, With Manufacturer's Limited One-Year Warranty. Two Plugs Per Order"