Ignition Coils... OEM Versus High Performance Coil

There is a performance improvement but only in the higher RPM's and the coils ability to deliver stable voltage at those RPM's, if your not into Gymkhana or something similar High Performance Coils might not benefit you any, plus there is the spark plug life, if you go with the performance then you will have follow up with the performance spark plugs also, otherwise the coils will blow the tips right off of the plugs. HTH

Ditto, I could not have said it better except I am not familiar with Gymkhana. But I can guarantee tennisshoes knows what he is talking about. But it's a Scion...? What do you expect from a shoe box on wheels? I just don't get it? What is wrong with the coils now?

OEMs are usually the best. Fords have the same issue, OEMs work the best others are iffy. OEM Ford coil on plugs will support over 900 HP. Now I know you don't have a Ford, but the same thing applies. The car makers today make a pretty good product. Their high voltage ignition systems are top notch. There are other ways to make more power and the Accel coils are not it. Do some "Googling" to see what others say. Ask for a dyno chart from Accel on the supposed gains. A quality cold air intake will do more and likely cost less.

Like that car there Bob, good evening...

Hello Rowefast, just sharing a photo of the wife's MKZ. She likes it!

The last post on this forum is interesting.......http://www.scionlife.com/forums/scion-tc-1g- drivetrain-power-1637/accel-coils-229777/

That's what I thought!!!