Made in Japan Performance CDI Ignition Coil SET YERF DOG Spiderbox GX150 Go Kart 150CC New

Received item. I can't verify if it made a difference because I didn't have the original CDI that came with the kart.

I installed these and a NGK spark plug to increase performance on a brand new 150cc scooter. Installed one at a time then off for a test drive to see which would really add to the performance. The spark plug and the CDI are where the true performance comes from, improved acceleration, 0-40 is much better after install. I did not notice any change between the new ignition coil and the old, and it seems the ignition cap is much shorter than the original one but still works. Did not increase my top speed though.Update 7/6/18Today the Ignition coil popped while going 50mph in heavy traffic after 3500 miles on the scooter. Very dangerous and had to get the bike towed home because I didn't carry a replacement. Oh yeah after swapping back and forth between the stock CDI, I confirm there seems to be nothing special here. Upgrade your engine if you want big speed increases.

This is an amazing deal! They sent me a Blue Racing CDI instead of the Black and Orange which is fine! Very happy with this product and the shipping was quick

NICE FIT

Bought as a gift for friend, he loves it!

This product works great so far, price was right and shipping was fast. Would like it with another color option then orange, but doesn't effect the performance.

Ignition coil it self was dead upon arrival ,no spark what so everCdi box worked perfectly ,so I went with a different ignition coil by itself

Great coil, used it on my yerf dog and works good as new