Re: Spark plugs worth it?
If your vehicle doesn't have an spark related issues with (Hard starting, pinging, poor fuel economy and reduced performance) I would leave them alone.
Iridium spark plugs: Are high-performing plugs, they offer better durability, ignite faster and last up to four times longer than copper spark plugs.
I hope this helps
2014 Jeep CG 5.7L Overland: 304rwhp & 337rwtq & firstname.lastname@example.org (K&N CAI, Diablosport inTune, Pedal Commander)
1994 Mustang Saleen: 890rwhp & 771rwtq