Do you have to change these ever? I've never owned a car with coil packs.

 

You only have to change one if it goes bad.

 

Do they go bad often? How can I tell if one is bad? Do they basically last forever? Can you get high performance coil packs or something like that for better performance?

 

granatelli motorsports sells high perf packs

 

+1 . here ya go . http://www.americanmuscle.com/sparkplugwires.html

 

500 dollars!!? wow. screw that. And is it exaggerating when it says 15 hp for N/A motor??

 

they tested them in 5.0 mag and thats what they got i dont remember if there was anything else to the motor than stock.

 

yeah , I hope I dont have to replace mine anytime soon , the stock coil packs probably cost alot too . I dont know about the 15hp . do you know which issue ? , I've had a subscription for years .

 

i just found it. it was october issue which means youve had it for at least 3 months if you have a subscription. page 164 and it was a s/c 02 gt the tested them on.

 

I have had 3 replaced

they go out and wont trip the COL sometimes...... i went through so much trouble finally took to a shop 150 per occurance

normally coil packs from dealer are around 40-65

so 500 is cheap for peromance coil packs