Originally Posted by
pete mcrash
......and how long do they last...???......u change 071's every service (4kish)........iridiums last 20k+
071c's are crap too!
Iridiums just dont seem to last as well as the NGK's, saw many cosworths with a miss-fire use them, swap to NGK's and back to normal...
but if your happy with them then carry on this is just what i've experienced.
