Spark plug Bosch or OEM Toyota

I have just replaced the oil and all 6 spark plugs with Bosch Double iridium.

As for the spark plugs, both Bosch Iridium and NGK Laser Iridiums are fine, arguably even better than OEM (which are made by Denso, btw).

I have a stack of 25+ index cards filled with notes about the care and service of the car. The factory service manual has notes and highlighted areas all over it.

I was looking at pictures of the V12 engine found in the Toyota Century. Then I noticed the spark plug/coil arrangement: Interesting.

Replaced spark plugs with genuine VW Bosch units

Belated follow up. I replaced the plug at the distributer as the signal from the hall sender was intermittent. Brand new Bosch plugs were had for cheap.

Been using bkr7e since 2007. They are ok, but not optimal in any way. Im now running Bosch F5DPOR. \"OEM Audi RS2\" They are gap free, and runs perfect at least at 15psi in my car.

Bosch is making crappy plugs these days.

Put the correct spark plugs in there (NGK BKUR6ET-10 for AEG), throw those Bosch +4 turds in the bin where they belong.

Bought Bosch platinum's and red bremi wires. swap everything all out, the misfires alot worse.