Granatelli 02-05 Chevrolet Trailblazer 6Cyl 4.2L (Dohc Coil On Plug) Performance Ignition Wires

These Granatelli ignition wires are built with a 7mm silicone jacket and a high-performance spiral core, designed to handle the demands of your 4.2L inline-six engine. They replace the factory coil-on-plug wires, offering a more robust connection and improved spark energy transfer to the spark plugs. This can lead to a more consistent burn, which often translates to better throttle response and overall engine smoothness.

The silicone jacket is resistant to heat and abrasion, protecting the internal conductors from the harsh underhood environment. The spiral core construction minimizes electrical resistance while also suppressing radio frequency interference (RFI), so you don't get static on your radio. This set is designed to fit a range of GM SUVs from the early 2000s, including models like the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier, making it a solid option for those looking to refresh their ignition system.