These are generic 3" exhaust flanges we use on just about every exhaust we build here at the shop. They are compact enough to fit just about anywhere and are a lot more economical than V-bands. They are laser cut from 1/4 in steel which makes them a good deal less bulky than other flanges we have used. Make sure you have both sides bolted firmly together when you weld them to the tube in order to keep them from warping. Sold individually.