Rated 5 out of
Transformed my pipeBought a brand new GPR pipe and was just way too loud for my needs.
Took it apart to see what was inside. Great material but I thought I could get more sound attenuation from better packing. The Stock packing was very light and not very dense. You could tell right from the get go the Moose packing was far superior. Just in weight alone you could tell this is good stuff. I went with the pillow option. I love the pillow end cap packing that was 2 separate pieces.
I have to say I found this a little pricey for packing but I can honestly say you get what you pay for. And to boot if this stuff last 4-5 times longer and resist heat break down up to 1400 degrees this should last a while.
I must also say it deepens the sound of my exhaust. Deeper fuller sound.
The original stuff including the steel wool around my GPR baffle served as just a solid pipe as there was no way the original packing was doing much as there was sooooo much steel wool, so it created a higher pitch.
I did not do the Moose wool sleeve, and I don't see any use for it as I just love what the Spec 31 packing does for me. I don't race but I'm addicted to wheelies, so i don't think i will be overusing this stuff but I could see that it could take the abuse.
I will definitely buy again.