Peace be upon you. JBA pipes, 3-inch size, original, very clean used, without dents or welding. Flange system, was installed on my 5.7 engine. And it fits models from 2005 to 2024. Whether it fits 6.4 or 6.1, I have no information. Also, there are custom-made throttle bodies, excellent quality, stainless steel 304. Size 2.5 inches. The throttle bodies operate on air pressure. Comes with 2 remotes and the control unit. The control unit draws air from the intake manifold. And the throttle body opens, a neat setup, without sticking, without leaks, without back pressure, and it doesn't harm the car. I used it for a full year and its performance was excellent. Reason for selling: I am selling the car. Reasonable price and good value.