I have a 2005 raptor 660 and was looking to put a slip on exhaust with a quiet core? If I put a LRD exhaust on there, leave the air box lid on, will I have to rejet? I don't really have a good test area for jetting, and I've never done a dual carb system. I haven't seem to have any luck getting a answer from LRD? Everytime I ask them, they give me their general instruction list, which always say remove the lid. I have no intent on removing the lid, because I rid some wet areas.

Lucky 13

ride, ride hard, ride fast, & pray not to crash!