Chrome Exhaust Stacks Technical

Plain End designates 6", 7", & 8" outside diameter stack (works with seamless design elbow). Reduced Plain End stacks are reduced to 5" outside diameter (slides into muffler). Expanded End fits over 5", 6", 7", & 8" outside diameter Stacks. Reduced Expanded End is reduced to 5" inside diameter (slides over 5 inch outside diameter elbow). Chrome Stacks ranging from 5" up to 8" are Made in USA while the 10" Stacks are Made in North America.

See also 5" Chrome Stacks, 6" Chrome Stacks, 7" Chrome Stacks, 8" Chrome Stacks, and 10" Chrome Stacks

Type of Tips

MiterCurveBullhornFlat TopShort 30West Coast CurveDiablo

Type of Ends

Note: OD (Outside diameter) or ID (Inside Diameter) depends on the diameter you choose. Available Diameters: 5, 6, 7, 8, and 10".

5" OD
at End

5" ID at End


Reduced to 5" OD at End Reduced Plain

Reduced to 5" ID at End Reduced Expanded
  1. Plain End - Stack has the same diameter from tip to bottom. It does not reduce, nor does it expand on the lower end.
  2. Expanded End- Stack expands at the end, so it will fit over the same diameter stack. Example: An 8" stack has an Expanded end that will slip over an 8" OD Diameter Elbow.
  3. Reduced Plain End- Stack reduces to 5" OD at the end. It will not slip into a 5" Elbow, unless the 5" Elbow has a 5" ID Expanded end or the Elbow is tappered at the top.
  4. Reduced Expanded End- Stack reduces to a 5" ID at the end. Example: The 5" end has an expanded end, that will slip over a 5" OD Diameter Elbow.