Cosmo Racing Ignition Coils

[pdX5M]

Has anyone tried Cosmo Racing's coils? Going to do new coils when I do the plugs and these seem to be a good option:

https://www.cosmoracing.com/X5-M-E70...TWIN-TURBO-S63

Got some good reviews elsewhere but just cause they do well in a Subaru doesn't mean they'll do well in the S63...

[Thecastle]

Not sure if I would consider the stock coils on an S63 to be a weak point. At 2x the cost of a set of stock coils, id want to see how they improve on the stock set. There is nothing in there about how they are more heat resistant, better winding insulation, nada. I'd say pass.

What kills coils is bad plugs, or plugs that have worn too wide of a gap. I have 58K miles on my x5m and never had a failed coil pack or on my N63TU car with 63K miles.

These aren't as bad as VW which blows coils all the time on tuned cars. That is until you get the plugs right.

[pdX5M]

Originally Posted by Thecastle

Not sure if I would consider the stock coils on an S63 to be a weak point. At 2x the cost of a set of stock coils, id want to see how they improve on the stock set. There is nothing in there about how they are more heat resistant, better winding insulation, nada. I'd say pass.

What kills coils is bad plugs, or plugs that have worn too wide of a gap. I have 58K miles on my x5m and never had a failed coil pack or on my N63TU car with 63K miles.

These aren't as bad as VW which blows coils all the time on tuned cars. That is until you get the plugs right.

Here is the description from the Cosmo website about their coils in general:

"They have special low resistance windings, higher voltage output and capable of high RPM operation. They deliver 30-50% more spark energy than stock or other aftermarket coils. The stronger spark gives your ignition system an added punch and overall result in fuel economy!"

I mean they are a bit more than stock but where are you finding OEM coils for $20/each? These work out to ~$40/each.