i have a 2004 raptor with a stage 1 cam and the powerbomb header and i was wondering how the mega amx did how loud it was if it would flow enough for my cam i had a titanium 4 but it is way too loud with my cam so i bought a q silincer and it makes my machine run way to rich and im only 1 set off jets above stock and its rich and its been -10 degrees here and when summer comes i dont htink i will be able to lean it out enough

 

i dont think they make one for the 660R.