70117 Hot Spark Glow Plug No.4 N4 Platinum/Iridium Super Glow-Plug for RC HSP Nitro Engine Car Truck Buggy (Pack of 3)

Thanks

These work just fine -if you put them in what they were designed for -HSP .18 or .15 engine! (4 stars) ,,,,my experience.... put them in anything hi performance-let the brain damage begin ...little advise just don't ....n3 or n4 ....(-5 stars)

These plugs are as described by seller. They have performed good thus far although I not not ran them very long.

I like how small they are but I got them for my 3 cylinder Geo Metro. They are too small and plug wires dwarf them. Im going to stop diy

For r c vehicle. Its a good product not one has burned out yet that says a lot after burning 3 gallons of 30% nitro

Didn’t even last 10 seconds they all blew instantly after starting

Hobby.

I purchased a 3 pack put one in the car directly after opening and within 15 seconds it had burnt out, then put the second one in and it would even start. Upon testing the plug it was already bad. Tested the 3rd plug and it was good so I put it in and got about 30 minutes of run time so far. There was no tuning done between plugs or anything so it should have been the same with all 3.