1.75 on mine.....I love them

 

2.0's on mine and love the sound, they get deeper as you get more miles on them. At least mine have.

 

I put th Rush 1.75 on wife's Heritage, plus I took out the packing. Sound is good, but thinking I might change out the baffle to the 2s as we heard them and they sounded great.

 

2.0's on mine, but I like a little louder so have 2.25's to slip in. Not until I add a tuner though.

If you like deep, not overly loud, my guess is the 1.75's will get you what you want.

 

+1 on above for me as well.

 

Rush truly makes an excellent muffler and does a great job standing behind their products, they also have an awesome staff.

 

I put the 1.75 on 150 miles before the sert and ac and the rightside started turning yellow! after the stage 1 no more yellowing, thinking about goin to the 2.0 could be deeper sounding.

 

10k miles on my Rush with 2" baffles.......really like the
sound / tone / look of these pipes.
Can easily hear the music at hiway speeds......

 

1.75's here also. Great pipes , love the sound , just right for me!

 

Not to go off subject but... I remember someone here saying that when they installed their slip ons they used Permatex copper gasket sealer? Why would you do that? Just asking because Im going to install my Rush pipes and didnt know if I should use some.