vs
Ignition coil MSD or Bremi
A factory coil is not wound well enough to keep a continued full spark at higher rpms. Upgrading my coil to the MSD blaster SS made a huge difference above 4,000rpms. Throttle response is much crisper and the rpm's are a lot smoother because the upgraded coils can recharge and send spark out faster than the factory unit. Granted I spin my car to about 6,000rpms every time I drive it so I needed the extra spark. If you're just looking for extra power your're not going to find it in a coil. You will find better fuel economy (I gained 20 miles a tank) a cleaner burn 27ppm on my emissions test total and smoother revs at high rpms.
Pros: smoother revs, better fuel economy
Cons: no extra power
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