Focus Fanatics - View Single Post - Stock Throttle Body V.S. CFM 67MM
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Old 02-10-2013, 10:10 PM   #22
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Join Date: Jan 2011
Fan#: 81895
Location: Arden Hills, MN
What I Drive: 2003 Sonic Blue SVT Focus

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Note: Stock Svt Throttle body is 63mm.

Stock SVT exhaust is 2.28"

Ok Your throttle responce will be greatly improved! the 2-4mm increase in bore, It has not proven or disproven to gain or stay the same in power. If your engine is Forced induction then you will see a better power gain with a larger throttle body.

Another option is porting your stock SVT throttle body. Some say they have the same gains as a 65-67mm tb. but I dont trust doing that kinda stuff myself.

In the end It makes your car that much funner to drive, and you get from 0-60 a little faster.
2003 Sonic Blue SVT Focus #524
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