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Sierra Classic 1976 - 1978 GMC K25 Suburban High Sierra
High-powered turbine to generate a high output at high rpm as a single turbine
Engineered for increased flow and pressure to cater to high RPM Nissan SR20DET turbo engines
Flush your system with distilled water to remove old coolant sediment—clean coolant ensures better heat transfer
Does the chrome need prep before installation
HKS GTII Waste Gate 50mm Valve Akrapovic Sierra Classic 1976 - 1978The HKS GT II Wastegates are the latest in wastegate technology. They feature a lower body cast from stainless steel and an anodized purple upper case machined from billet aluminum. The GT II Wastegates weighs approximately 2 3's the weight of the original GT Wastegate and are significantly smaller in height and width. Their compact size combined with the GT II's V band inlet and outlet flanges allows for versatile mounting in tight spaces. GT II