anyone ever heard of these mufflers

http://www.goerlichs.com/product_sub...s_xlerator.asp

mainly the xcelerator.

 

I wouldn't trust it, it doesn't even give a cross section

 

sorry i should of made myself clearer.... i am wondering if anyone has heard this muffler!...

i have a friend who is recommending these...says there is little to no resonating tones in the cab.... but outside the cab sounds good and deep toned.. I get to try it before i buy it soo that is a good thing..

 

ive heard they are just knock of flowmasters

 

you may be right... i hear that hey sound just like a flowmaster but you dont hear it in the cab like a flowmaster... dont know if it is thicker walled or what..