Best Midpipe for my 3" Mac catback??

[04BlckCOBRA]

What give me the best sound, and performance for my cobra? The car has 3" mac catback on it, and whatever i get will be catless.
Thanks

 

[redfire03 svt]

get the upr offroad x. It sounds wicked with the MAC 3".

 

[racerat]

Prochamber.
Don't know about performance, but the sound is awesome. Had a catted magnaflow X with my 3" for a while and I did not like it.