Bosch Spark Plug Wire Review
Bosch's longstanding reputation of being a provider of OEM quality spark plug wires stems from years of state-of-the-art manufacturing technology and quality control systems. But how do you find out if all this is true and not just some marketing fluff? To test if installing a Bosch part on your car's engine can give you better performance under the hood, we've installed a Bosch spark plug wire set on a 2002 Chevy Silverado 2500HD and observed its ride for two weeks.
- Manufactured and designed using the latest inductive core technology from Bosch
- Kevlar reinforced aramid core with stainless steel wire windings
- Lower resistance than normal resistive leads
- Inner and outer insulating silicone sheathing
- Superior heat resistance up to 250°C
- Reinforced fiberglass braid with high liner and tensile strength
- Comes with a 5 year - 50,000 mile limited warranty
- You can never go wrong when it comes to Bosch's standard of quality. This became very apparent when we physically inspected the set. Its 100% silicone jacket made this particular spark plug wire more protected against oil leaks, making it more durable and longer lasting.
- Installation of the part was fairly easy. Although the wires were longer than we had expected for our 2002 Chevy Silverado, its OE replacement fit allowed the connection to snap on perfectly. It matched our original equipment perfectly. Each wire in the set was also numbered, which guided us all throughout the installation of the wires.
- The part also featured "Snap lock" terminals or OEM style connectors for a more snug fit . This OEM-style silicone boots also compensated for the difference in length between the original wires and the ones from this Bosch set.
- Before installing the spark plug wires on the Silverado's engine, we were having problem with its stumbling performance. This problem was fixed almost instantly after replacing the wires with the Bosch spark plug wires. We were able to drive it for two weeks, and close to 300mi, without encountering any misfires. We even noticed how radio static was reduced during our ride.
- As mentioned in the PROS section of this review, the spark plug wires from the Bosch set were little long—3-inches longer to be exact. Although no problems were seen, one spark plug wire was pretty close to the steering shaft. We are keeping an eye on it for possible rubbing instances.
- The replacement wires did not provide much of a difference in the Sliverado's gas mileage or power. It did, however, run a bit better than when the original wires were still installed.
- Since these Bosch spark plug wires only come in a set, we expected it to have everything we need to properly install the wires as well as for the part itself to function efficiently. But we were disappointed that the set didn't come with some dielectric grease. We had to purchase our own, even when we only needed a small amount to complete job.
The Bosch spark plug wire's quality construction and good performance is exactly what you'd expect from a brand that has been supplying high voltage ignition systems since 1902. It can solve your vehicle's ignition problems—from misfiring to stalling—upon installation. It also features OE-replacement fit and form, ensuring hassle-free installation and trusted performance. However, if you're looking for better gas mileage and stronger power, replacing your vehicle's stock spark plug wires with the ones from this set will not ensure the results you are expecting. These improvements do not simply rely on better performing wires, but on more powerful spark plugs. So if you're looking for a more powerful engine, replace the stock wires and plugs at the same time.