I have a 2012 v rod night rod special .I have been runnig k@n air filter Stock drilled exhaust with a Tabs autotuner with 0 issues
I have now installed a set of your super trapps in place of the factory mufflers! it will hardly run low end ! runs awsum top end .am running open
with 12 plater per muffler . i closed it the other day using the plates ran a lot better but just not right pops cracks on d excelleration and flutters , surges acts like its missing cruising 30 to 45 much better but just not right !! are these 4 inch mufflers that demanding that i need to remove plate's
tks Steve