Mustangmaster

Or something else. Which one gives the most power and best gas mileage? Anybody have any experience changing to any of these others?

CKurello

i was watching some powerblock TV on Spike and they found that E^3 (E cubed) had the best performance, mpg ...etc

05 Mustang

all the performance shops around here recommended the Autolite HT0's...so that's what I'm running

howarmat

NGK have had issues i have heard. autolites and the motorcraft replacements are ok and the new champion 7989 which are a 1 piece design are the only others out for our car that i have heard of. E^3 doesnt have one designed for our car that i am aware of and niether do the others. Remember the GTs dont use any old plug, its a pretty recent design. Be sure you dont buy something that wont work for our cars and screw something up bigtime. Plugs for this car is a nightmare as it is, you dont need to add to that!

mAnYsTyLeS

Get a 1-piece design - Champion or Brisk are the only availableplugs right now.

Mustangmaster

Have you changed plugs yourself in your stang? Did one break off? Could you get it out? Did you use a standard plug wrench?