Spark plug NGK or OEM Subaru

I replaced mine last week and used anti-seize lightly. No problems that I see.

Replace the plugs with NGK or Denso.

I have the OEM RS7 plugs in my car for 40,000km ever since going to stage two with zero issues and will buy them again.

I bought NGK-94833 spark plugs from FCPEuro for my 2015 Jetta with the 1.8T.

I run NGK iridiums in my vehicles due to them being turbo/supercharged.

Stick with NGK for plugs, its the OE manufacturer, Bosch or Denso are good second choices. Never touch autolight or champion

Change spark plug to ngk iridium.

they certainly look to be different heat ranges. do yourself a favor and stop going to the dealer for spark plugs. the only different between the dealer spark plug and a big box store spark plug is that one does not come with the VW logo stamped on the side of it. they are otherwise the exact same plug. just go get yourself some new NGK's (all 4) and put yourself at ease.

I changed my own with about 50 US in tools. Its a pain to do without dropping the motor down which i didn't do.It took me about 3 hrs for 4 plugs. Replaced with nkg plugs at about 25 each. I have the tools and know how but I'd probably pay someone 500 dollars to not do it again. It was an eye opening experience.

Replacing a motor is not fun, nor cheap. That was with 9006 RS7's btw (your current plugs).