The High Speed Performance mechanical IPR bypass kit is a must for drag racing and sled pulling when running big hybrids. This kit uses the factory IPR until you go wide open throttle or press a momentary button. This lets you increase your ICP pressure up to 5000 psi. This takes care of the IPR popping open and loosing ICP under wide open throttle. The mechanical IPR can be set to the ICP pressure you want to run.
Hydraulic hose, return hose and wide open throttle (wot) switch or momentary switch not included.