I have a 1994 Pontiac Firebird Formula A4 car. I currently have a Hooker Aerochamber muffler on it now. I am wanting to know if the Spintech muffler is louder and if it flows better than the Hooker muffler. Also which one of the two would make the most power on my car. Thanks, everybody please reply if you can.

 

I don't think it will be as loud......there aren't many mufflers that sound better or flow better than a Hooker Aerochamber.......it's among the best.

 

Magnaflow. I love it. All stainless. I have had my car and a hooker lined up side by side, and the magnaflow has a deeper growl and is louder than hooker. They are about the same with the HP gain and which flows better. Toss up. But go magnaflow, you won't be dissapointed.