Hi All - I made the move to a new RG last summer and will appreciate any insight you'll lend me about a muffler swap I'm considering. The 3.5" Rinehart slip-on is my preference for the first change of exhaust from the factory set-up but I'm reading some things that lead me to believe that only the size 4" slip-on is recommended for model years 2010 and up; some kind of consideration for the heat produced by the catalytic converter rather than an actual physical incompatibility.

SO....can someone comment on wether this is just a Rinehart CYA issue or if there's been an actual, demonstrable, problem determined with the use of the 3.5" with the late model 103? Maybe more simply put, are any y'all running the 3.5" Rinehart slip-on trouble free on their 2010+ tourer?

Thanks.

 

factors to consider- the sizes given are the exterior diameter of the muffler- which may have little relationship to what is happening inside.

more important is the size of the core ( how big a hole the exhaust gasses go through) and the flow characteristics.

but performance wise it will have little effect on a bike with a cat in the header- the cat itself may be the bottleneck to flow, so any changes may be moot.( and the cat is a huge determiner of sound as well)

if your prime consideration is "sound"- I;d suggest a bike night or dealer bbq, go hear some bikes- ask the owner what they have---both of bikes you like and those you don't. that'll help you narrow down what works for you.

lots of guys here do use the mufflers you are interested in

Mike

 

I have 3 1/2'' on my 2011. Rinehart's website states they fit up to 2009, but they'll fit 2010 & up. I heard the same thing about the heat issue & turning the muffler yellow/blue if you run the 3 1/2" on newer bikes. I just did the the SE A/C & HD re-map & didn't have any problems.