Spark plug Bosch or OEM Subaru

Plugs are by BOSCH. Post this job, it runs a lot better, and I mean a loooot!

if you want to save a bit and still want some quality get bosch plugs those are good too, I’ve used them before and they were pretty good as well.

The bosch plugs can be found at autozone or O'Reilly's for about 18 bucks each. Cant recall the exact spec, but vw uses the Bosch plugs stock, so its a direct oe swap.

Replace the spark plug with a Bosch. See if it will start and run.

I have a shelf of new parts for a bunch of my VW’s. All the cap and rotor parts I can find are the same for either car. They’re brand new. The plugs are brand new as well. Gapped by the Bentley. The plugs were “black” from trying to fire but not.

Bosch spark plugs aren't bad, per se, but they're not really anything special.

I recently just replaced my spark plugs they were past due. So I bought the OE Bosch 9683. The engine runs fine, starts easy, no misfiring, no rough running. But after the plug change I am getting much worse millage.

definitely avoid Bosch spark plugs. I'm not personally a fan and I've seen plenty fail. Unless they were original in the motor (usually Subarus don't use Bosch), I'd stick with NGK or Denso in my opinion.

Bosch spark plugs are also trash.

Those spark plugs are junk, and on top of that, they are now carbon fouled. I would strongly encourage you to install new, normal, spark plugs.