MaxFlow??

I went to the local muffler shop to see about pricing a magnaflow muffler and the guy said he didnt carry any. He said he had a "generic brand magnaflow called Max Flow." he said that its the same thing without the name. and he could install for $70. I tried googling it and cant find an actual company website. Ive never heard of this brand before and was hoping to find some information on the quality and sound before I put one on my only vehicle. If anyone knows anything I would greatly appreciate it.

 

well i found a little bit more info about it. Hooker Headers makes a "maxflow" muffler. some high end porsches and ferraris have "max flo"