I purchased my Opti through summit they came in clutch when the first one failed they replaced it for free and I was able to get the car running within 2 days. I then took the new Summit Opti & added an MSD Cap & Rotor which just seemed a big heavier duty then the Summit version. But recently it threw a low voltage code which makes no sense because without the low the car wouldn't run usually its the high that fails.
I'll also add this ebay'r on just in case.
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