2.5" 304 Stainless Straight Interlock Liner Flex Coupler 4" Length

System1 Designs
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Flex couplers are used to isolate engine vibration to your exhaust components, and prevent cracks in your downpipes, cat-backs headers and turbo manifolds. We have introduced Stainless Steel Flex Couplers that have bellows with interlocking lining to help increased exhaust flow through the coupler, and prevent excessive back pressure to build. Standard flex couplers either have a braided inner liner that in time will burn out creating an obstruction in the exhaust track, or others with a flex bellow that creates turbulence when exhaust gases flow through. These are the only type of flex coupler that can withstand high pre-turbo exhaust temperatures, meaning you can use these flex couplers when complex turbo header designs are needed to prevent turbo header cracks. Perfect for turbo downpipes!

Customer Reviews

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Izac Hillam
Good product.

MAP is very easy to work with. Products arrived on time. The quality of metal the flex pipe is made of is really good. Some notes to know is the internals if a 2.5" flex pipe material does neck down to about 2.25".