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Screamin Demons Worth It N/A?

  • Thread starter Thread starter Blackout67
  • Start date Start date Oct 20, 2025
B

Blackout67

Member
Apr 13, 2025
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Cincinnati
Oct 20, 2025
#1
  • Oct 20, 2025
  • #1
I have an 03 with the 3.8 Essex and ive noticed my idle is a little choppy. Changing out the plugs, wires, and coil pack on my last V6 Mustang fixed it. While I was pricing out coil packs, I noticed the Screamin Demon is only like 30 more dollars than the Motorcraft ones and they claim it gives better MPG and acceleration and lets you use bigger gapped plugs when you upgrade the wires.

I dont plan on doing forced induction at all and all the threads I can find are people running turbos or the 4.6 V8, but not so much NA V6s. What kind of gains would I be looking at with higher flow heads and intake as well as the upgraded coil, plugs, and wires and less restrictive exaust?

I dont plan on tracking the car or street racing. I just want some extra pep and mileage. Would it be worth it?
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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Box behind Walmart
Oct 20, 2025
#2
  • Oct 20, 2025
  • #2
Zero. Swapping out the coils is worth zero HP.
 
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