vs
Spark plug OEM BMW or BRISK
Been running them for the last year on EQT stg 1 91 and e30 with no issue.
Pros: no issue
Check out Brisk Silver Racing (listed as an option by EQT). You’d have to replace them more often vs iridium, but they are super inexpensive and more performance oriented (conductivity).
Pros: inexpensive, performance oriented
Cons: replace them more often
Put the one piece Brisk in so that you don’t have to relive that again.
I ran the Brisk plugs for 6200 miles .. a bit over the 5K recommended interval. Installed Denso 5749 plugs this weekend and maybe I'm imagining things, but it seems a bit less temperamental at highway speed passing pulls. With the Brisk's installed lately I was getting some hesitation with WOT. No more.
Pros: less temperamental, no hesitation
Cons: hesitation with WOT
Mileage: 10000 km
Part number: 5749
I went with [Brisk ER12s](https://www.fcpeuro.com/products/vw-spark-plug-brisk-racing-er12s) plugs. They are one of the plugs recommended by EQT and I have been happy with them so far. Cheaper than the NGK/Denso plugs but downside is that they are silver based, so they will wear out faster. I am at 10k miles on them now and starting to feel a little rough idle; time to re-gap or replace them.
Pros: happy with them so far
Cons: rough idle, wear out faster
Vehicle:
Volkswagen
Mileage: 10000 km
Part number: ER12S
I’ve been running Brisks for 30k now and haven’t had any issues
Pros: no issues
Mileage: 30000 km
If you are willing to put some money into it before resorting to drastic measures, try replacing all 6 of your spark plugs and ignition coils. Might help in your case, or it might not.
Pros: might help
Cons: might not
Vehicle:
BMW
I was running stage 2 apr with rs7 brisk plugs, had misfires on cold start. Did carbon cleaning myself, misfire kept happening. Spark plugs kept getting lose even after torquing. Switched to Oem spark plugs and no more misfires.
Pros: no more misfires
Cons: misfires on cold start
Gonna do brisk silver with 4C coils unless someone has any advice on Brisk Silvers being bad. Was gonna try them out over the NGK Laser Iridium
Cons: brisk silvers being bad
Also I would stay away from Brisk ER12 spark plugs since they require higher change intervals (And risk of damaging coil packs) @ 3-5K miles as opposed to NGK R7437-8 or NGK R7438-8 @ 10-15K miles.
Cons: higher change intervals, risk damaging coil packs
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