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Exhaust Systems - Custom Tailpipes

Hardin Marine's Stainless Steel Fabrication Specialties

With over four decades of Stainless Steel product manufacturing and fabrication Hardin leads the way in technical design as well as quality of materials. We've developed tailpipe designs used by many of the worlds fastest pleasure boats . When equalized cooling and water distribution are key, Hardin is the #1 choice.

Starting with elite materials, such as the finest 316L cold rolled stainless steel, we sculpt and create exhaust tailpipes designs that solve the most difficult of fitment challenges. Our years of tailpipe fabrication have been key to the development of numerous anti-reversion technologies. From single engine to multi engine there isn't an application we haven't tackled without success. If you're looking for the best in exhaust development and manufacturing Hardin Marine is the only choice.

How to Mock-Up Custom Tailpipes

When ordering custom tailpipes, the easiest the way to get the correct pipes without mistakes is to build PVC mockups. It's easy to put together a series of PVC pipes and connectors, then mark the connections with a sharpie pen. Once done we'll have you ship the PVC components to the factory to be reassembled, then have the SS pipes built to the same specs. Below are some examples of custom pipes we have built off of PVC mockups.

Contact us to begin your new tailpipes

Custom Low Port Seaward Tailpipes

CMI Tailpipe Flange
Your Price:
$129.99

CMI Tailpipe Flange

650-29000

CMI Tailpipe Flange

  • Height: 5"
  • Inner Dia: 4"
  • Outer Dia: 4-15/16"

Basis for constructing custom CMI tailpipes. Same as #29180J


Flex Flare Tailpipe Flange for Mercury QC4 (1100-1550) Motors
Your Price:
$178.99

Flex Flare Tailpipe Flange for Mercury QC4 (1100-1550) Motors

650-44204J

Ring to convert flat turbo flange on Mercury QC4 (1100-1550) HP motors to a Flex Flare tailpipe connection. Works with standard Big Tube clamps. Picture shows front and rear. SOLD EACH!


Mercury Header Flange To CMI Tail Pipe
Your Price:
$309.99

Mercury Header Flange To CMI Tail Pipe

650-41018P

Mercury Header Flange To CMI Tail Pipe

This CMI Flange adapter is designed to allow a Mercury Header flange to mount to CMI flare tail pipes. This part is used to convert a Mercury 500EFI E-top header to a flex flare 4" tailpipe connection instead of the Mercury flat flange.

Sold In Pairs


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