Autolite 3910X Spark Plug

With this spark plug on my predator 212 modded with the stage 1 kit this spark plug and the torque a verter kit with spacers my top speed was 45mpg on hilly winding roads I recommend this spark plug on any and all supported engines!!!!

It seems to me that it made my cc100x faster and I recommend when doing a tuneup check out your sparkplug gap thank you Gopoweersports... Satisfied

Made a big difference,made 224 predator come alive.

I bought this last sunday and it and my other product have still yet to even ship. A bit disappointed

Great racing plug, great service!

Have not had a chance to try them.

Bought it and installed it into a custom engine I've been working on for awhile. I've used it for approximately for about 4 hours till it stopped working, I've found carbon climbing up the ceramic through the nut. I thought nothing of it and thought it was my head failing, I've had the valves seated twice at a machine shop, $300's later I threw a stock sparkplug on it and the engine ran fine. I don't know whether I got a bad batch. But either way I'm not a fan.

think I need a carb

I love that spark plug I have a ct200u-ex I can tell the difference from the spark plug that came with it

Autolite 3910X Spark Plug