jpmustanggt

ON MAC's website they have a section for MAC long tube pro chambers and short tube pro chambers. Does anybody know the difference. I already have the MAC catback system and was planning on getting MAC headers but I don't know if you have to already have the long tube headers for the long tube pro chamber to fit or not.
Please help!!!!!!!

Voodoo

With Mac longtubes. If you use a Prochamber you don't use cats. You can use the longtubes with the catted H-Pipe.

With shorty headers you have a choice to use cat's or not. look here http://www.rpmoutlet.com/musv8maccat.htm#1

I got the longtubes with no cat's. They can turn off the check engine light and noone will be the wiser with emissions in my state. Shhhh.

Voodoo

The long tubes are here, You can see the difference. http://www.rpmoutlet.com/musv8macpro.htm

They also make an hts coated that is cheaper. About $359

jpmustanggt

do you have to have the longtube headers before you get the long tube pro chambers?
how much power did you get from them?

kubball2005

Dude voodoo you're confusing him... the longtube pro chamber is shorter because it's designed to compensate for the longer headers rather than being longer to reach up to the stock or shorty headers. To answer your question, yes you need longtubes on first before you install the shorter prochamber because obviously it won't reach.

jpmustanggt

thats what i thought. thank you. do you know any short tube headers that will work with the short pro chambers?

Voodoo

Sorry I guess I got on the Cat thing. The thing is that they don't make a prochamber that has the ability to be catted that will fit to the long tube header.

You can bolt up the prochamber with the extended sections either catted or not to the stock manifold or almost any shorty. I would call to be sure though. I always call to make sure on that stuff.

ghoste

short tube headers = long tube x/h pipe

long tube headers = short tube x/h pipe

simple explaination