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. These are the same pipes included in our full swap kits that are available in another listing.

Updated for 2018, now featuring our exclusive CNC milled flange to seal correctly with your existing 6.5L truck style downpipe.

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:

  • 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 mechanical wastegate controllers for these turbos as well!


We Also Recommend