Originally Posted by manisusmc

https://www.pulstarplug.com/howtobuy...engine=1422548

if nobody has tried these what are people replacing theirs with, I've always had bosch plat. 4+ in my cars.

just wondering the best mods for a car are the ones that get you better gas milage and power ie: intake, exhaust, spark plugs, lighter weight vehicle etc.. which are the mods i want