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Big 3 upgrade

Badluckinc

2.0L EcoBoost
Well-known member
First Name
Joe
Joined
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Location
Indiana
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2025 Lobo
Engine
2.0L EcoBoost
Clubs
 
Those that have done the big 3 upgrade. How did yall go about adding a larger cable from battery to ground with the battery monitor sensor? Thank you.
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Busl0adofnuns

2.0L EcoBoost
Member
First Name
Brandon
Joined
Oct 23, 2025
Threads
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Location
Somerset, ky
Vehicle(s)
2024 ford maverick xlt, 2018 ford flex sel
Engine
2.0L EcoBoost
https://a.co/d/d2qN5Ay
Im gonna try this. Move the factory post off to the side, use the zero port for the big 3 idk if ill use the hot side the same way or not. I feel like the ground side will be fine. These trucks seem to be pretty sensitive to voltage ups and downs. I was gonn use a 3 way fused distribution block on the hot side. Just a note I have kicker lx1200.5 and never go below 13v running on stock set up.
 
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Badluckinc

Badluckinc

2.0L EcoBoost
Well-known member
First Name
Joe
Joined
Aug 14, 2024
Threads
17
Messages
123
Reaction score
256
Location
Indiana
Vehicle(s)
2025 Lobo
Engine
2.0L EcoBoost
Clubs
 
https://a.co/d/d2qN5Ay
Im gonna try this. Move the factory post off to the side, use the zero port for the big 3 idk if ill use the hot side the same way or not. I feel like the ground side will be fine. These trucks seem to be pretty sensitive to voltage ups and downs. I was gonn use a 3 way fused distribution block on the hot side. Just a note I have kicker lx1200.5 and never go below 13v running on stock set up.
About to drop in a 1200.1 with 2 L7T 10s
 

Busl0adofnuns

2.0L EcoBoost
Member
First Name
Brandon
Joined
Oct 23, 2025
Threads
1
Messages
19
Reaction score
5
Location
Somerset, ky
Vehicle(s)
2024 ford maverick xlt, 2018 ford flex sel
Engine
2.0L EcoBoost
https://a.co/d/d2qN5Ay
Im gonna try this. Move the factory post off to the side, use the zero port for the big 3 idk if ill use the hot side the same way or not. I feel like the ground side will be fine. These trucks seem to be pretty sensitive to voltage ups and downs. I was gonn use a 3 way fused distribution block on the hot
About to drop in a 1200.1 with 2 L7T 10s
I bet it will be fine without a big 3. If end up doing a mids amp witch you probably will nice speakers on factory unit sucks.
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