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Review on πŸ”₯ Spectra Premium C-675: The Ultimate Coil on Plug for Optimal Performance by Keith Maynard

Revainrating 2 out of 5

Poor quality control

Out of the three received, two were bad. I replaced the rear coil on my 2001 Miat and it has worked great for 1000 miles. Then I replaced the front coil but it wouldn't start. I put the old coil back in and everything worked fine. I sent the defective coil back and got a replacement. Same result. Swapped the front and back, same result. I put the old spool back in place but now in the rear position and it started normally. Now I'm looking elsewhere for a replacement.

Pros
  • Decent performance
Cons
  • Hard to tell