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Review on NGK (58914) CPB-Z003 Coil on Plug Boot: Superior Performance and Durability by David Gonzalez

Revainrating 5 out of 5

Not worse than series

Not worse than series. They fit and work great on my 2002 Mazda Miata (1.8L I4). They are resistive type (like the standard devices) so they don't interfere with electronics or radio signals. They don't interfere with AM or FM radio stations in my car and they don't interfere with my Scosche FM transmitter. No static.

Pros
  • Automotive
Cons
  • Doubtful purchase for older people