HSP Diesel Billet Thermostat Housing Kit For 01-05 6.6L Duramax body 4L intake manifold on the

4L intake manifold on the market

the Stage 5 system is purpose built for generating peak horsepower and torque

these new 4" IFS system are FMVSS 126 (ESC System) compliant

Maximum Performance Our cold air intake for the 2009-2015 VW 2

Application: Gas only — 6

HSP Diesel Billet Thermostat Housing Kit For 01-05 6.6L Duramax body 4L intake manifold on theThe HSP Diesel Billet Thermostat Housing Kit is engineered to elevate the cooling system performance of 2001 2005 Chevrolet and GMC trucks equipped with the Duramax LB7 and LLY engines. Constructed from premium billet aluminum, the precision machined housing ensures superior durability and resistance to corrosion, offering a reliable replacement for the factory plastic housing prone to cracking and leaks. Alongside the housing, the kit includes a high