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When the mainline pressure is increased with upgrades such as a high-performance transmission kit
with a black oxide finish for extra durability
Adjustable gear ratio from 2
Don't take chances
Install Note: AFC spring provided in this kit should only be installed when injectors in the engine are capable of supporting greater than 525 RWHP
Fleece Duramax Turbo Thermostat Coolant Plug Hose Coupler|Hardware When the mainline pressure isFPE TURBO THERM 2001 2010 Duramax The Fleece Performance Duramax Turbo Thermostat Delete Plug is designed to eliminate the stock coolant feed line when installing a non water cooled turbocharger on your Duramax. It provides clearance for larger intake plumbing and uses an O ring seal to prevent leaks.
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