[Bryan Nash]

Twin 40s straight through pipe =more sound pulls hard in all rev range

 

[Howling Mad]

More information please

 

[Joooooooosh]

Guessing it's been mapped to match the new setup? Not worried about just sucking in the warm engine air?

 

[Max Kool]

There is no mapping as far as I can see.

(looks a lot like a old fashioned flatslide...)

 

[Yello n Black]

Nice!!