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Throttle body upgrade?

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Odessa, Texas
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2020 Explorer ST
#1
Hello everyone. I was browsing parts on lethal performance and saw that AFE is offering a 65mm throttle body upgrade that fits the explorer ST. I am curious if anyone has done this upgrade and if it was worth it at all? I understand it would be most beneficial with upgraded turbos or bigger/serious builds.
 

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'20 Raptor, '22 Explorer ST, '14 GT500, '03 F150
#2
Hello everyone. I was browsing parts on lethal performance and saw that AFE is offering a 65mm throttle body upgrade that fits the explorer ST. I am curious if anyone has done this upgrade and if it was worth it at all? I understand it would be most beneficial with upgraded turbos or bigger/serious builds.
Link? Never heard of it nor anyone running any aftermarket unit.
 

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#3
Not really needed on a pressurized system like this. No on something that draws through like a Whipple supercharger you want as big as you can get. IIRC the one on my F150 was 132mm.
 

OP
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Thread Starter #4
OP
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Thread Starter #5
Not really needed on a pressurized system like this. No on something that draws through like a Whipple supercharger you want as big as you can get. IIRC the one on my F150 was 132mm.
I'm just curious how much of a difference it makes. Regardless on amount, considering its less than $500. I know there's people that will buy anything that helps give them any kind of power.
 

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Massachusetts
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2023 ST
#6
I'm curious if it needs tuning. I have no plans to install one however.

I know when i change throttle body size on my Mustangs (N/A setup if that matters), i need to make some slight adjustments to the tune for drivability.
 

Last edited:
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#7
I'm just curious how much of a difference it makes. Regardless on amount, considering its less than $500. I know there's people that will buy anything that helps give them any kind of power.
None. I tested a bunch of different size TB’s on a ProCharged truck of mine…none made any more power but the bigger they got the more drivability issues showed up.
 

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#8
I'm curious if it needs tuning. I have no plans to install one however.

I know when i change throttle body size on my Mustangs (N/A setup if that matters), i need to make some slight adjustments to the tune for drivability.
If you got a aftermarket throttle body you absolutely should tune for it.
 

GearHead_1

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#10
The up to +8 is the gotcha. It might be 8 but it might be 0. I seriously doubt you'll get anything out of it without mods to support it.
 

OP
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Thread Starter #11
The up to +8 is the gotcha. It might be 8 but it might be 0. I seriously doubt you'll get anything out of it without mods to support it.
I currently have down pipes, full exhaust, and intercooler. This weekend i will also be installing all of the fenfab intake and charge pipes, as well as a zfg tune after all is installed.
 

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#12
The up to +8 is the gotcha. It might be 8 but it might be 0. I seriously doubt you'll get anything out of it without mods to support it.
They’re the same ones who claim huge gains with drop in filters and intakes, I don’t ever trust these type companies numbers.
 

UNBROKEN

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#13
I currently have down pipes, full exhaust, and intercooler. This weekend i will also be installing all of the fenfab intake and charge pipes, as well as a zfg tune after all is installed.
Read post #7 again.
 



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