Spark plug Bosch or AC DELCO

I just replaced my spark plugs on my 2012 1.4T with the ACDelco 41-121 ones.

Bosch Plugs are tops in any application you use them for... All of their parts are worth what you pay for them...I've...\"NEVER\" had a Bosch part of any kind to fail at its applied usage...! True top of the line German Engineering... period...!!!!!!

I used Bosch plugs in mine about 3 months ago and I couldn't be happier.

Spark plug Bosch MB - $26 AUD each (part SPVA6SIP80)

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

I have used NKG FOR THE PAST 6 years on the car , no issues at all. Recently replaced them with Bosch OEM spark plugs , it’s same shit , no difference.

Bought mine from rock auto; got the Bosch ones since the NGK’s are really only recommended if your car is tuned

Installed new Bosch Plugs (WR7DC+), Bosch Distributor Cap, and Rotor. Now the car seems to be having a weird idle sitting as stop lights, and the engine almost shut off while I was backing into the garage. Also she seems like its having a harder time sterting up as well.

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.