Standard Spark Plugs or NGK Iridium?

[IA148461]

I need new spark plugs for my car (LS1) but I am not sure if I should just get 8 new standard NGK plugs for $4.90 each or get 8 NGK Laser Iridium IZTR5B11 plugs for $30.00 each. What do people recommend? I can read the benefits of the Iridium plugs or is all that just NGK's marketing wank?

Cheers.

 

[villn808]

Iridium just last longer. Don’t waste your money.

Not sure if your car is stock or not, have a look into Brisk Silver racing plugs if boosted or modified.

Far better than Iridium and bit cheaper.

 

[mechanic]

Iridium cost 6 x as much but don’t last 6 x as long as standard plugs.
They aren’t difficult to replace on your engine and offer no economy or performance advantage.

Stick with standard plugs.

 

[IA148461]

Iridium just last longer. Don’t waste your money.

Not sure if your car is stock or not, have a look into Brisk Silver racing plugs if boosted or modified.

Far better than Iridium and bit cheaper.

Completely stock. So I think I will stick with normal plugs.

 

[IA148461]

Iridium cost 6 x as much but don’t last 6 x as long as standard plugs.
They aren’t difficult to replace on your engine and offer no economy or performance advantage.

Stick with standard plugs.

Cheers man I will stick with normal plugs.