Exhausted

I am just about to start building my exhaust for my 408w. I have my mac long tubes and I want to run the 3" dual to a mac prochamber. Except I want to build my own because it seems to just be a box. I have a welder so I was hoping someone could give me some dimensions of one with a 3" exhaust.
 
It's a box where the exhaust passes through two tubes inside of it. The tubes have little holes around them. Kind of like a piccolo tube maybe. Probably a word for that type of tube, but I can't think of it. It's the same kind of tube you have going through a glass pack.

Kurt
 
Require an exact part number on the Mac LT's you're using.

Mac rep SWEARS to me that they do not make a LT for 351 swaps in our cars, although I've sent him links to many threads on the corral which clearly state their usage...some people are thick, I guess. I'm assuming you're using fox swap headers, which he also swears will not work under any circumstances.

Appreciate your help, thanks! :nice:
 
I am just about to start building my exhaust for my 408w. I have my mac long tubes and I want to run the 3" dual to a mac prochamber. Except I want to build my own because it seems to just be a box. I have a welder so I was hoping someone could give me some dimensions of one with a 3" exhaust.

Buy my long-tubes .. lol I may actually be selling them if it makes my life easier. Accufab 1 7/8 to 3" collectors. Cost me dam near $900 but if I can get $650, I might sell them.