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Review on Enhance Ignition Performance with ACCEL 140043-8 SuperCoil Set (Pack of 8), Yellow by Joe Gosa

Revainrating 3 out of 5

Great but wrong fit

They don't fit the 03 Silverado 2500HD, work great and increased MPG by 2 MPG with combo leads, but spark is hotter than required and will burn through spark plugs if not upgraded for power .

Pros
  • Good stuff
Cons
  • Some cons