99-07 Chevrolet Silverado GMC Sierra Engine Coolant Expansion Oil Catch Can Combo Tank BLK

Straightboost® Coolant Expansion & Oil Catch Can Combo Tank Fits 1999–2007 GM Truck Applications One of the most complete and well-engineered coolant expansion and oil catch can combo tanks available on the market, designed specifically for high-performance GM truck builds. At Straightboost® Performance, we are committed to developing purpose-built components for the automotive performance community. We are proud to offer this custom coolant expansion and oil catch can combo tank, engineered for 1999–2007 Chevrolet Silverado and GM trucks that require improved durability, clearance, and performance over the factory plastic tank. Whether you’re replacing the OEM tank for aesthetics, reliability, or turbo clearance, this all-aluminum solution delivers increased longevity and superior heat resistance compared to the factory unit. Vehicle Fitment Designed for 1999–2007 Chevrolet Silverado Optimized to allow turbo installations without clearance or overheating issues May fit other GM vehicles using the same factory-style plastic expansion tank(Please contact us if you are unsure about compatibility) Oil Catch Can Performance This system utilizes our proven multi-level internal baffle design, engineered to remove maximum oil vapor while maintaining unrestricted airflow. The result is effective oil separation without introducing crankcase restriction—ideal for both street and performance applications. Customization Fittings can be changed or relocated upon request Contact us prior to purchase for custom configurations Specifications Brand: Straightboost® Material: Aluminum Finish: Natural Aluminum Construction: Fully TIG welded Features Coolant level sight tube Billet aluminum radiator cap 16 PSI (OEM replacement) 28 PSI / 36 PSI (high-performance applications) Billet aluminum coolant inlet/outlet barb ports (2) -10AN breather ports Multi-level internal oil baffle system Breather filter screen Laser-cut aluminum retaining plate 6AN ORB drain port with billet aluminum drain valve Integrated dipstick for oil catch can level inspection Capacity Coolant Side: 3.75 qt (3.57 L) Oil Catch Can Side: 1.8 qt (1.7 L) Dimensions (See Reference Photo) Length: 10″ (254 mm) Width: 6.5″ (165 mm) Height (tall side): 8″ (203 mm) Height (short side): 5″ (127 mm) Important Notes Does NOT work with factory airbox or filter No coolant level sensor port For off-road or race use only Light surface scratches may be present due to the manufacturing process Made to order — production time: 5–10 business days Proudly Made in the USA