Five Oh Brian
Member
Well, I went with Ford spark plugs, and I've heard that as long as the car has under 50k miles, they come out without too much fight. I do have one more issue though, I've seen a LOT of cars that change the coil packs when they change the plugs, most seem to go to the ACCEL or MSD coils. Is there a reason, like the stock ones suck or break, or is this just a mod for like 5 RWHP that people do?
If you still want a colder heat range, FRPP offers their 3V0 spark plug for our 2005 to early 2008 GT's. They are one heat range colder and are copper cores which conducts 10 times better than platinum, so they're better in high cylinder pressure applications (i.e. superchargers, turbos, and nitrous). They are about $80-$100 per set and last about 6 months of daily driving.
Changing the plugs is very easy if you follow Ford's directions in their TSB. I've changed my plugs about a half dozen times with zero problems.
With my Vortech supercharger, the stock coils were never enough voltage (20K volts) and I has minor spark blowout. I recently installed GMS Hot Street coils (42K volts) and it cured the spark blowout and the car runs so much better/stronger than ever! I should have swapped coils when the blower first went on!