I installed this 3" catted down pipe on my 2021 Mustang 2.3 High Performance Package, the install is not hard and I did it using my Quickjack and it gave me plenty of room to reach everything.
I purchased the stainless steel gasket and I highly recommend you do the same, it is thicker than the gasket that comes with the kit and it is much better quality. Just evenly tighten the two exhaust nuts and the stainless steel gasket will seal properly.
The kit came with a "J" pipe for the down stream O2 sensor however on the A10 automatic you won't be able to pint the "J" pipe forward due to clearance with the side of the transmission, you will have to point the "J" pipe upwards and slightly tilt it forward for clearance.
The two bolts and nuts that come with the kit were a little short for the bracket on the automatic for my Mustang, I know others have said the bolts were to long so CVFab is darned if they do and darned if if they don't on the two bolts, it seems Ford has Maybe used different design brackets I guess. I will keep an eye on the two bolts and check them for tightness.
Over all this is a high quality pipe and is well done. I would like to see them include a sheet of paper that explains the "J" pipe and the direction it needs to point and to let the purchaser know that it is for the down stream O2 sensor in the cat. That is just to clarify where it goes and what direction it should point.
Once you finish the install and start the engine for the first time the…