mustangdaren

Question about throttle bodies. Is it worth the money to upgrade. I read somewhere it said the mustang had a single 70mm throttle blade but when I looked at mine it has twin throttle blades. Does anyone know what mm the factory twin blade throttle bodies are?

don_w

About the only TB upgrade I've seen that was worth doing, is switching to a GT500 TB on a high HP blown application. For 500hp and below, I don't think they are worth squat. But they do make pretty billet doorstops.

2K05GT

you are correct I made the mistake buyint the GMS Bullitt TB, it caued so many issues that I had to toss it. plus I did not gain any hp or throttle response, so spend on somthing else.

The Stock Throttle Body is a dual-bore 55mm The aftermarket ones are 62mm