Wondering if anyone has used this? It seems like a good thing. Apparently its new tech?
https://www.google.com.au/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&u act=8&ved=0CCoQFjAC&url=http%3A%2F%2Fwww.thermalve locity.com.au%2Fproduct.asp%3FP_ID%3D425&ei=MeUnVO axBcen8AX2ooCIBw&usg=AFQjCNEQBoi1CkcTUvQ8xlkTXVK-hdFLCg&sig2=IU5bXp2HefwARJN_N-Ra9A
Basically it comes in mat form, can be cut to size, doesnt need to go real tight on the perf tube, and expands into the can once it sees some heat.
Anyways i bit the bullet and bought some, gonna convert my muffler into a stubby and repack it, will report back.