Our Braided Exhaust Flexi / Exhaust Bellows are designed to make a reliable flexible connection in an exhaust system. Flexi joints are recommended in an exhaust system to help stop the weight and vibration of the exhaust transferring vibration up through your turbo or turbo manifold, this can lead to cracking of your manifold or bolts and studs vibrating loose They have a braided outer layer and a flexible inner, meaning there is no internal stainless weave that can collapse and block the flow of exhaust gases These are ideal for high power automotive, waste gate plumbing, marine, or truck exhaust applications. We offer them in a variety of styles including braided exterior, welded, and crimped Made with 304 stainles steel weld ends Tube Size Inside Diameter Outside Diameter (Short) Outside Diameter (Long) Length (Short) Length (Long) 1.75 44.5 60 - 64 - 2 50.8 66 75 64 154 2.5 63.5 76 88 76 151 3 76.2 98 102 101 151 3.5 88.9 112 115 101 153 4.0 103.2 - 132 - 153