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Exhaust Flex Bellows, Turbo Manifold Bellows | Ace Race Parts

304 Stainless & 321 Stainless Flex Bellows

Stainless Turbo Manifold Exhaust Bellows | Ace Race Parts

Take the stress off of your turbo manifold, dump tube, or downpipe with our new 304 and 321 Stainless Steel Flex Bellows

Our 304 & 321 Stainless Steel Flex Bellows minimize the potential for cracking in turbo manifolds, dump tubes, downpipes and other automotive and industrial applications. Utilizing a slip-fit design that allows the matching tube size material to slip into the bellow, our exhaust flex bellows feature a smooth bore directional inner liner that needs to be placed in the flow of the exhaust gas.

After working with numerous fabricators around the country to fine tune the design of our bellows we believe that we offer the highest quality and most cost effective flex bellow in the fabrication components market. These stainless steel bellows were developed specifically for the automotive market and are ideal for turbo manifold, dump tube, and downpipe applications.


  • 100% 304 or 321 Stainless Steel Construction
  • 2-Ply Bellow Design
  • Slip-Fit Connection Type (must be welded)
  • Directional Smooth Bore Inner Liner 
  • Extremely Durable in High Pressure Applications
  • Pressure Tested: 145 psi @ 68°F and 72.5 psi @ 842°F
  • Helium Leak Tested Prior to Shipment
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Kalin Atanasov - November 25, 2020

Hello.I have a qeustoion about flexi joint.Need 3.5" from 321 stainess steel.Do you have ?

Ace Race Parts - May 16, 2018

Hi Eric,

Thank you for the comment! The closest item we have to a 2.000" ID x 4.000" long flex coupling that will have a much better longevity than a traditional braided flex coupling is our 2.000" ID x 2.500" long Flex Bellow (SKU: 24016). Unfortunately, the only downside of this item is that it’s a bit shorter than the piece you are currently looking to replace. We don’t yet offer longer flex bellows; however, we have found that the flex bellows, rather than the braided flex couplings, function much better in applications like yours. Please contact us if you’d like more information or assistance.

Thank you again,
Ace Race Parts

Eric Lee Reedy - May 16, 2018

Have a header before the turbo with a 2” x 4” flexible coupling that keeps blowout. Do you have. Bellows coupling for a turbo charger application. Or something in the same dimensions as above.

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