Going to get buddys car dyno tuned, which coil is better.

I think I remember hearing bad things about the MSD coil.

 

it's a stock replacement thats all it won't give you a sotp feel and I've had mine for a while now with no problems. Just gives a little more juice.

 

MSD = GARBAGE. Mine lasted only 500 miles before it stranded me on the roadside. I put the stock coil back in, and it still works fine, over 175k miles on it.

Beware of shiny red parts for your car!!!

 

had mine well over 5,000 miles with no problem maybe you had a bad one no?

 

I had a MSD coil go bad in three months. Car would hardly run. Sent it back to MSD and they said it was fine. I put on a Borg Warrner coil and the car ran fine. MSD sucks as far as I'm concerned.

 

had mine on for a while and it works fine, as a matter of fact MSD is the only ignition systems ive used for over 15 years on all my cars. Prorac1

 

I say it cuz I think I will restore the balance back to 50/50.
mine died with about 5k on it. the stocker went over 50k and its back on. First MSD product that I have ever had fail or anyone I know has had fail

 

you have to figure a mass produced product is going to have some that come out that are no good it happens everywhere because nothing is perfect...thats why they say we are only human

 

Stock is the best by far. MSD COILS SUCK! I replaced mine with delco and no more hesitation.

 

I have had a MSD coil for about 2 years. No problems!

 

For our cars:

MSD 6A box =
MSD coil =

 

why? the MSD box shortens the life of the optispark and why is the coil bad?

 

Yes, my first MSD Blaster coil died prematurely, but the replacement they sent me has gone 50k+ miles with no trouble. Same can happen to any coil. People have reported the same things happening with other brands as well.
I also don't subscribe to the theory that the 6A shortens the opti life, or if it does, not enough to be concerned about.

 

My MSD coil is 3.5 years old with 40,000 miles on it and works just fine.

- Brent

 

I'm with shoe, I have had an MSD 6a for 4+ years and I am on the original opti (128,000 ).