Spark plug Bosch or Denso

Bosch Spark plug

Anyways, I put in so Bosch Tri-Electrodes and Beru coilpacks. Once I got the APR ECU back the car fired right up. I drove it for a good hour and no misfires!!!

Pros: no misfires, car fired up
Vehicle: Audi S4
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Denso Spark plug
hellfighter333
  • Acceleration:
Rating 4.0

ive put new denso oem spark plugs and im waiting on my coil packs to come in from ecs tuning and i hope that will fix my problem

Pros: new spark plugs
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Bosch Spark plug
kevhayward
  • Acceleration:
Rating 2.0

I bought some of those and didn't think much of them tbh. My engine prefers NGKs for some reason. Feels smoother and more eager to rev. I noticed with the F5DPORs a 'welded on' tip which looked a bit weak

Pros: smoother and eager to rev
Cons: welded on tip weak
Part number: F5DPOR
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