Top of the line GR2 titanium exhaust bellows/flexi's If you are setting up an external wastegate plumb back into your exhaust then a exhaust bellow is something you will want to consider using. These are also great for exhaust systems where length is an issue Our exhaust bellows help with alignment of v-bands or flanges by giving movement when bolting together and are specifically designed to fit in tight spaces where length is limited. When thermal expansion is creating issues of cracking pipes these will aid with this by allowing pipes to move while heating and cooling from every day use of your vehicle Convoluted outside with an internal slip join construction, the ends are welded. No stainless weave to collapse and create a restriction, 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 These are light weight and 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 Dimensions Tube size ID OD Overall Length 1.5" 38.2mm 54mm 64mm 1.75" 44.5mm 60mm 64mm 2" 50.8mm 66mm 64mm 2.25" 57.2mm 74mm 65mm 2.5" 63.5mm 76mm 76mm 3" 76.2mm 98mm 101mm 3.5" 88.9mm 112mm 101mm 4" 101.8mm 124mm 103mm