Order processing time has increased due to simultaneous tax & stimulus refunds. Please email us ahead of time if you are on a specific timeline. Turbos and plenums are made to order and will have additional lead time. As always, we appreciate your support of our small business and look forward to working with you!


Holset Turbo Downpipe Adapters

PT Wiring Solutions

  • $150.00


Bolt-on adapters for wastegated Holset exhaust housings.  These are designed to connect these popular turbo swaps to your factory or aftermarket downpipe in a matter of minutes.

Now featuring CNC sealing rings for the downpipe connection.

This is for the "Do it Yourself " DIY customer who needs the adapter as part of their turbo swap project.

 Please choose the correct type based on the turbo you are using. PLEASE DOUBLE CHECK BEFORE ORDERING.

  • HX35W, HX40WII, WH1C
    • These typically have a 3" v-band flange on the exhaust plate that will be replaced by this adapter
  • HX40W
    • These typically have a 4" v-band flange on the exhaust plate that will be replaced by this adapter

*Be sure to check out our other listings for full install kits or other individual components you may need


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