Owner reviews for spark plug

ngk Same as prof315-jeff,bkr7eix on both setups,supercharger and now turbo and they still work,my only mishap is i bought a set bkr8 and one fouled do to much gas @ idle,now with megasquirt no problems so far.

i know of several 2.5T and 2.0T (big turbo) running BKR7EIX gapped at 0.028"... Myself included, and no issues.

I am running those in my car now and they are perfect!!

Personally I prefer NGK and have had excellent results on our customer's cars with NGK. They make a great plug.

On almost all FSI / TSI applications we prefer the NGK, either PFR7S (which is the 'oem' plug on most TSI engines we see) or PFR7Q gapped to .028. We have had bad luck with missfires with the Bosch on tuned cars. Stock seems fine.

While I had the coils out, I replaced the plugs (used ACDelco double platinum professional grade, proper gap. No NGKs were available). After I replaced the coils, the misfire code(s) went away for a few days.

I honestly can't say if you're low/high or I was low. What I can say is on my 9A 2.0 16v (rough guesstimate 185k miles)... NGK iridium plugs (standard gap)

I ran them for awhile in my Passat VR6.They did decent.Burned really well actually. I think when I was running them I only got about 23 MPG.

I've tried NGK's gaped at .28 twice now once as preventative maint. and again some 20k down the road out of curiosity and both times i'd miss under WOT.

I tried the denso IK20 and had nothing but misfires.