[Kevin_0]

Does anyone know what the size of the stock throttle body is on the 05-09 V6 Mustang's? I'm trying to figure out if I'm better off adding a throttle body spacer or simply replacing it with a 70mm one by BBK.

[Justin01]

Not sure on the exact size, 56mm-60mm I think, but I know it is ample for what you need unless you are charged. I'd skip both and move on to another mod. Niether will net you anything on the butt dyno, and probably similarly on the real one.

Just not my cup of tea, but if you HAD to do one, I'd pick the spacer....$290 for the throttle body is too much for minimal gains.

[hutcccch]

All the things I hear is that it's a minimal gain on hp.