JoeFab Posted October 15, 2008 Share #1 Posted October 15, 2008 Hello All - I just put some HD Road King pipes on my 02 venture. Do I need to rejet? Some people I spoke to say yes, others say no. How do I know for sure? These things have absolutely no baffles and are loud as heck!!! TIA. Link to comment Share on other sites More sharing options...
yamahamer Posted October 15, 2008 Share #2 Posted October 15, 2008 As long as you don't change the headers you don't need to rejet. Link to comment Share on other sites More sharing options...
Ponch Posted October 15, 2008 Share #3 Posted October 15, 2008 Two things basically affect carb re-jetting. Air In & Air Out. If you didn't change the type of Air filtration or the headers, you're fine. Those headers are very restrictive. If the mufflers are all that was changed, you really haven't affected the discharge volume. My Link to comment Share on other sites More sharing options...
waterbug Posted October 15, 2008 Share #4 Posted October 15, 2008 What if you change to a K&N filter and RK pipes do you have to change them or just with a header? Thanks Link to comment Share on other sites More sharing options...
JoeFab Posted October 16, 2008 Author Share #5 Posted October 16, 2008 Great! Thanks for replies. Link to comment Share on other sites More sharing options...
pegscraper Posted October 16, 2008 Share #6 Posted October 16, 2008 K&N filters don't require a rejet no matter what else is done. Link to comment Share on other sites More sharing options...
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