E-3 Diamond fire Spark plugs

Any body used these on there 1st gen 4 cyl?

Is there any difference from using a stock spark plug?

Is it worth the extra money?

 

i've never used them but i heard there a pos. there more of a gimic. when i was looking at them for another car alot of people say there engine starts messing up after a few 100 miles and when they put norm types back in their engine works fine. imo they are a waste of moeny

 

Ok, thanks the the response, I ain't gonna waste my money on them them.

 

yeah. imo the normal type of spark plugs hav worked for 100 years. it must be doing something right.

 

Not sure about first gen but on the second gen 4 cyl, iridium oem spark plugs are top notch. Just replaced mine, I believe they last around 100k