I gutted my stock pipes and added some 4" baffles in the front of the pipes to give some back pressure and also have a large washer with a 1" hole mounted toward the rear. I'm trying to figure out what exhaust selection to use on the jetting calculator. I had short TORS and a drilled airbox using 132 mains, I'm wondering if I need to close up the hole in the airbox with this exhaust as I don't want to rejet at this time as I'm doing the airbox removal thing soon.
Thanks
