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Review on Autolite 4194 4PK Copper Non Resistor Spark by Chris Elder

Revainrating 1 out of 5

Disappointing Spark Plugs for Automotive Engines

Based on our own experience, these spark plugs did not perform well in our engine. We noticed a decrease in power and acceleration, and had trouble starting the car on occasion .the only positive is that they are affordable. However, considering the potential for engine damage we would NOT recommend these based on our experience..

Pros
  • Effective in transmitting electrical energy to spark plugs.
Cons
  • May cause interference with electronic equipment due to lack of resistor.