HP6217-2
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This kit is used to control converter charge and exhaust pressure in order to loosen the converter when needed. The single internal dump valve will typically raise stall speed by 400-800 RPM, the second stage external dump typically will raise it another 200-400rpm. These dump valves can either by controlled by your ECU or the Hughes controller linked below.
https://squirreltuned.com/products/hughes-performance-dump-valve-controller
*Free shipping within the USA. Please contact me for out of country orders at squirreltuned@gmail.com.
Here is a great video with some more information on this product:
And here is a video of me explaining how I will use this product: