Gills are awesome! I've ran them on my BBM7 since I bought it. They let lots of heat out. I drilled large holesaw holes and run the petmesh on the clutch side for our fine powder up here. On the exhaust side I cut 2 large squares out and left a ridge in the middle for support. They are tough though. They really stiffen up your side panels so they don't press into the clutches when pulling tight sh*thooks. PM Gutterball on this forum or look up Sundown Solar in Calgary, Alberta and talk to Scott. Great service from the guy that makes them.