Coil Pack Advice...Stock vs. Aftermarket - Ford Mustang Forum
 
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post #1 of 7 (permalink) Old 03-13-2011 Thread Starter
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Coil Pack Advice...Stock vs. Aftermarket

Alright so I have a 03 3.8, CAI, True Duals with Flows NGK Iridium Plugs, and MSD 8.5 mm wires. I am looking at replacing the stock coil with a Screamin Demon coil. Im not for certain but I think that the stock coil only puts out 14k volts and the Demon claims to put out 85k. I am planning on the upgrade regardless to help with fuel economy, but I heard that i needed a programmer/chip for it to preoperly work...any suggestions/comments?


2003 V6 Mustang Coupe True Dual Flowmaster Exhaust, CAI, NGK Iridium Plugs, MSD 8.5 mm plug wires, SCT 4 Bank Chip-many more future mods
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post #2 of 7 (permalink) Old 03-13-2011
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No, no programmer needed and it does not offer anything over the stock setup for a basically stock engine. It is honestly a waste of cash. There are no gains with this, including gas mileage.


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post #3 of 7 (permalink) Old 03-13-2011
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I saw a little improvement in mpg's but I replaced plug wires at the same time and everyone told me it was just replacing old wires that did it so it's really up to you if u want it or not, I did it at 100K miles or so, I just thought it was a good matinence thing but to each his own it's really up to you there are better things u could get first

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post #4 of 7 (permalink) Old 03-13-2011
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+1 Its no better than a stock coil.

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post #5 of 7 (permalink) Old 03-13-2011 Thread Starter
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ahh gotcha, thanks for the info, oh and by the way is the t lok really worth it or should i just go with 8.8

2003 V6 Mustang Coupe True Dual Flowmaster Exhaust, CAI, NGK Iridium Plugs, MSD 8.5 mm plug wires, SCT 4 Bank Chip-many more future mods
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post #6 of 7 (permalink) Old 03-13-2011
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Stock GT 8.8 will come with a T-lock, if you never plan on pushing more than 400HP then the 7.5" will work great with a T-Lock added.

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post #7 of 7 (permalink) Old 03-14-2011
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id go with the 8.8 after its all said and done...its abotu the same price as gears/kit/install.fluid. as far as ignition forget it untill u go FI. i ran 12 PSI boost on my stock ignition just fine. ( 2005 ) recently upgraded to a boost a spark to push more air!
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