George B
¯\_(ツ)_/¯
I loved running those back in the day.Strangely enough I haven’t touched the tune and it drove almost perfect to dinner and back. Definitely needs a tan more quiet tho so I ordered a cheap thrush hush without measuring anything hoping it will fit in the dump pipe side by side with the dynapro. I think it will knock the last bit of drone out of it. If it looks big and awkward I’ll get it ceramic coated black, but I think I have some space I can rotate the pipe up and take advantage of the offset in/out.