Spark plug Bosch or NGK

21K on my NGK's and no problem. Yes they were plug and play.

Never put those cheap ass Autolite plugs in... With that said, copper NGK plugs (brk6e) are great plugs...I was running the NGK -1 range cooler plugs (bkr7e) until the last GIAC update...and was pleasant pleased with the quality of the plugs...especially for $1.50 a piece!

within the past six months, off the top of my head, i had the following done at tyrolsport : timing belt water pump thermostat oil cooler and housing all new coolant hoses.. thats right.. i did it just cause.. i have the reciepts. valve cover gasket cam tensioner gasket ngk pfr6q's see where this is going?

i felt the same hesitation with my car. i did a scan and got some cylinder misfire faults so i changed my spark plugs to the NGK 1 heat range colder and i havent felt that hesitation since.

I used the NGK BRK6E V-power plugs, and from what I understand those are highly recommended, and I did switch the coilpacks from cyl 1&2. it's weird because I had many misfires before the CEL was thrown.

I know I use the cheap copper NGK B8ES plugs. Who cares if I have to replace them every oil change. For $1.79 who cares

I found a set that didnt get sent with my car for some reason when i sold it they are worth the money my idle smoothed out with the bosh compared to the autolite 63's

When it was time for my 80K service I used Bosch FR7HPP222 plugs gapped at .040. The current owner is now at 110K and the car is running great.

Stock on mine was .032, but my buddy's GLI was gapped from the factory at .029. I gapped my NGK iridiums at .028. I broke two plugs in the process...gapping iridiums with a normal gapping tool doesn't work!!

My OEM coil was failing at the time, & I replaced the plugs from Bosch -+4's to NGK V-Powers (copper)so I'm sure the plugs contributed aswell. It always took afew extra cranks to start with the Bosch +4s......