There are several aspects of Bosch spark plug wires that provide real benefits for their owners. One, Bosch wires (the MAG variety, at the very least) use stainless steel in place of the standard metal in order to stave off erosion and give your spark plug longer life. Rust and other damage can lead to misfiring sparks as well as radio interference, among other problems.

Two, Bosch spark plug wires produce a longer spark, ensuring that the combustion stroke of your engine is properly timed. It takes much greater precision to time a short spark with the end of the compression stroke and the beginning of combustion. Even a millisecond-long miscalibration can produce noticeable inefficiencies in your engine.

More Benefits of Bosch Wires

Another value-added benefit of buying Bosch spark plus wires is their limited lifetime warranty. Bosch fully stands behind every wire set that comes off its assembly line and guarantees the life of their premium parts with this written guarantee. If you're buying Bosch from an aftermarket retailer, be sure to request a copy of this agreement and retain it for your records.

Finally, Bosch models its spark plug wires off the original factory-issued parts found in the cars and trucks shipped from the manufacturer. This improves the likelihood of a perfect fit for customers who choose to install their own wires. Bosch mimics the actual length of these wires and uses only heat-resistant connectors and boots on their assembly line.