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Treadstone Exhaust Fabrication - Stainless Flex Coupler UNIVERSAL

These parts should fit your vehicle, they are universal parts. Click a part number for more information.
UNIVERSAL
FC350 Stainless Steel Interlocking Liner Flex Coupler
Diameter 3.50"
FC150 Stainless Steel Interlocking Liner Flex Coupler
Diameter 1.50"
FC400 Stainless Steel Interlocking Liner Flex Coupler
Diameter 4.00"
FC225 Stainless Steel Interlocking Liner Flex Coupler
Diameter 2.25"
FC200 Stainless Steel Interlocking Liner Flex Coupler
Diameter 2.00"
FC250 Stainless Steel Interlocking Liner Flex Coupler
Diameter 2.50"
FC175 Stainless Steel Interlocking Liner Flex Coupler
Diameter 1.75"
FC300 Stainless Steel Interlocking Liner Flex Coupler
Diameter 3.00"

Product Description

Treadstone Stainless 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 introduces a high flow flex coupler with stainless steel interlocking lining to help increased exhaust flow through the coupler, and prevent excessive back pressure to build up. 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 couplers when complex turbo header designs are needed to prevent turbo header cracks. Perfect for turbo downpipes! We use these in our WRX turbo kit up pipe!

All sizes are measured from inside diameter.

  • 1.5” 1.75”, 2” and 2.25” ID’s are 4” long.
  • 2.5”, 3” ID’s are 6” long.
  • 3.5” ID is 7” long
  • 4” ID is 8” Long

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