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[Curse]

What the gain over a stock ignition system?

 

[cobra2798]

What the gain over a stock ignition system?

I didnt get no dyno #'s after I put them in but you could feel a difference in a smoother idle, smoother acceleration and better throttle response. 5.0 magazine tested them on a 03 Cobra and got almost 9rwhp over the factory plugs, and they are already pre gapped so you just throw them in and go.