handtpipeline
Well-Known Member
The muffler has been rotted out on my 580 Super L for quite a while. we fabbed this up today, it's straight piped now, with 2 1/2" pipe from the turbo, up thru the cowling, sticking about 2 feet up. Then we welded a piece of 5" stack to the cowling over it. Sounds pretty good actually...