Pipe size makes a big difference - 17749's and their 2-1/4" equivalent are different in their noise level. 2-1/4" are almost factory quiet - the 2-1/2"s quite a bit louder but not obnoxious or ticket worthy.
Were I to redo mine Lemans, I would have 2-1/2" head pipes with 2-1/4" tail pipes. My T/A has the Thrush setup; quiet but not OEM quiet.
|