Examples of the perforated tubing on white background. This image shows one with an expansion and one without.

Perforated Tubing Exhaust Inserts

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$23.00 - $67.00

Create that muscle car sound on your project with these exhaust inserts from Stainless Works. This 304 stainless steel insert features a perforated core but is not expanded on each end. These peforated tubes are perfect for muffler projects or sidepipes that are tapered on each end.

End Finish Options:
Not Expanded tube diameter is the same the entire length.
Expanded tubes increase Tube Diameter on the ends to slip-fit inside a larger tube.
‣ 2.5" OD Expanded to 2.85" fits into a 3" tube
‣ 3" OD Expanded to 3.35" fits into a 3.5" tube


  • 2-1/2" Or 3" OD Tubing
  • Lengths Available 12", 18", 24", 30"
  • .049 Wall Thickness
  • 1/8" Perforated Holes
  • 304 Stainless Steel From American Mills

Free Shipping

Get free shipping within contiguous USA

Made in the USA

Stainless Works products are made proudly in Cleveland, Ohio

Long Tube Headers

For use on Race & Competition Vehicles Only.