Originally Posted by xexok

I think coils probably do last longer than 30 or 40k, but a majority of people do seem to end up changing them. I don't think its really an argument about "bad coils" but rather the coils slowly degrading and providing less spark/performance/whatever over the years of use. I know I recently replaced my coils + wires and there was a noticeable difference in how the car performed and I was at 35k miles. Maybe I am wrong and the coils never degrade and work 100% until suddenly they completely break, but what I said above makes more sense to me.

You might be replacing a few bad or going out coils and a few working ones at a time, but is it not better to have all the coils at the same state(100% new, or a year old or whatever)? Spending ~$120(or whatever cheap coils are for a set) even every 2 years is not breaking the bank to try and keep your car 100% healthy in that aspect.

NewbZILLLA spending 8k on a car in my eyes is still a pretty big investment. Maybe it is not to some people but buying my rx8 at 17k was a HUGE deal for me, if I had bought an older one for 8k it would have still been a big deal.

Sorry about the underline text, this thing refuses to let me turn it off since I copied your name and pasted it here.