Hey, does anyone know how much louder resonated test pipes would make a top speed pro 1 axel back? Is there a big noticeable difference or not? Thanks.

 

Makes a big difference. A lot louder, more drone, lower rpms will rasp until over 4K RPM if you have an automatic. But after 4K is sounds great, especially the down shifts. Had this set up for two years but the drone was too much to deal with.

 

so it still drones that much even with the resonated test pipes?