Hey I have a 91 Z28 with the 5.7 which means I have the dual cats. Right now I just have a Flowmaster 80 series muffler and it personally was not at all what I thought it was going to be. To me it has a hallow sound that is not very loud at all. My ? was has anyone put the hooker cat back on with the dual cats and have run into any problems or can give me any hints on putting it on to the dual cats. I know welding will do the job but is there anything else. And also how loud is this really going to be is it louder then the American Thunder Cat Back.

Thanks
Scott

1991 Z28
5.7 TPI
Gutted air boxs
Air Foil
Fastchip
14.4 @ 95.6mph

 

I'm not sure how much louder, but I have a sound clip in the signature. Use the sound clip one and not the video one (sound is distorted in that one.).