Holset DIY Turbo Downpipe Adapters
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 a CNC milled flange to seal better with the 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 Use one design
- HX40W uses another
*Be sure to check out our mechanical wastegate controllers for these turbos as well!