Originally Posted by
cjm1126
i dont know which page it is on, but someone a while back actually measured out all the different plugs, the only one that matched the grp plugs were the os plugs, i havent had a issue with a p3 i change mine out around a gallon of fuel, havent had one go out on me during a race, if you run the grp plugs make sure you run the 4 the engine acts a little finiky with colder plugs
yeh mine came with a 4 ...i just dont even trust it after i helped break my buddies in ...and the grp plug wouldnt lite out of the box new ............yeh on the measurments ...the guy who did it only used o.s. and grp plugs ....no other plugs were measured ....so i mean really the other brands havent been measured by a mititoyu drop gauge ....not that they need to ....just saying .....
