This Flex couplers are used to isolate engine vibration to your exhaust system, This type of flex pipe are made SUS304 Stainless steel with High quality, they are made with much more Ribs so make it much more flexible than standard flex pipes.

Specification:

Color:Silver
Material: SUS 304 Stainless Steel
Inner Diameter: 51mm
Length: 70mm
Bellow: 2 Layer Bellows
Overall Length:70MM
Ending: Stainless Steel cap
Outer : Chain Meshing
Inner: 304 Interlock