Originally Posted by iminhell
BBK is 1mm larger than stock, CFM is 2mm larger.
If that convinces you to spend $250 so be it. I don't think it's worth it.
Stock: 20.5735 in^2
BBK: 21.2114 in^2 (0.6379 in^2 larger than stock)
CFM: 21.8591 in^2 (0.6477 in^2 larger than BBK)
Yes I am aware of the minimal size difference. SVTs are know for there slow throttle response (it drives me crazy). I have been doing some research and people who upgrade the throttle body have a noticeable increase in throttle response. Apparently the stock one isn't the greatest design so I was looking for any opinions on it.
03 Ford SVT Focus - Toms tune, Steeda mounts & stress bar, ORP, 66MM BBK TB, CFM UDP, Rota Grids
The Bad Cat (97 Merc Cougar XR7) - Flowmasters, MSD ignition, K&N intake, 19" Stern ST-4 Warps