05 base, vibe. about 189,000 miles on it. It,s still got about 3 outta 4 original coils in it. I only drive to about 5,000 miles annually nowadays.. Question = Would the average aftermarket ignition coil set from auto zone or advance make the car run smoother and last a few years. I assume some of the idle roughness may be caused by old, worn out ignition coils..
I say don't risk it. I tried replacing coils as a tune up about the same mileage, and two of the new coils failed in months. There were supposedly OEM, identical to the originals. I ended up putting all the originals back in and they're working fine at 230K miles.