Spark plug Bosch or Denso

Bosch Spark plug

Bosch components made in the EU (this is the important part) are in many cases the items that VW installed on the car in the plant, or better. Take the spark plugs for example, Bosch just prints the VW name on it and VW installs it in the engine.

Pros: OEM quality, reliable
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Bosch Spark plug

As for the spark plugs, both Bosch Iridium and NGK Laser Iridiums are fine, arguably even better than OEM (which are made by Denso, btw).

Pros: better than OEM
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Denso Spark plug
turbokick
  • Acceleration:
Rating 5.0

Im with the Densos already and the spool and throttle response is so much better. Even with gap 0.075mm they are much better.

Pros: much better spool, much better throttle response
Part number: IK22
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Bosch Spark plug

God knows they can only be as bad as the Bosch plat +4's, Man those are terrible in basically everything I've put them in... good luck!

Cons: terrible in everything
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Bosch Spark plug
Titan357
  • Starting:
  • Acceleration:
Rating 1.0

Had bad bosh plugs before.

Never had a issue with OEM ac-delco or Ford plugs/parts.

Pros: no issue with OEM
Cons: bad bosh plugs
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