I am getting my tranny built in the next couple of weeks on my 04. I would like to install a Pacbrake with controller soon after. My questions are:

1. If i decide to go twins will i have a issue with the Pacbrake being in the way ? Should i get a inline brake instead ? Do any of the twin kits work with the Packbrake ? Any other issues ?

2. I have stock exhaust still. Do i need to think about a different size exhaust now with the Packbrake. I thought with the 4" exhaust the elbow would need to be 4" as well. I don't want to run into a problem in the future as far as exhaust size with the use of twins and a 03-04 Packbrake E/B kit.

3. Will having the tranny built (Race Series full billet) take care of the thrust washer issue on the 04 48RE tranny ? Have not yet asked the builder.

Thanks