Does anyone have any knowledge or advice on Helix?

They do look like the ones Warp found and the ones Malcy was running .. they are a good sounding muffler , ain't cheap either .
 

Well good then that saves me some money and since I just shed a bundle on other stuff I could use a savings about now.
 
I saw these guys at barber last year. Quality products for you to complete. They are unfinished stainless.
Cone engineering