1997-1999 Oldsmobile Aurora 4.0L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 yy2210B 7:1 standard compression ratio

7:1 standard compression ratio

Silica gelSize:As shown in the figurePackage Content:1 x Exhaust manifold blocking plate1 x Intake blocking plate1 x coolant baffle1 x 1" stainless steel hose clamp1 x brass straight barb1 x vacuum cap1 x pressure sensor bracket1 x pressure sensor bracket hardware1 x coolant hose2 x 3 / 4 inch coolant cap3 x 8mm bolt3 x 8mm flat washer3 x zipper beltFitment:For 2011-2019 Ford F250 F350 F450 F550 POWER STROKE 6

Includes 5/8” 6Ft 100% silicone reinforced hose made for oil systems

2 * 1 / 4 "- 20x 1

1997-1999 Oldsmobile Aurora 4.0L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 yy2210B 7:1 standard compression ratioProduct Overview: 1. Exhaust headers are a key upgrade for boosting engine performance by improving airflow. Unlike restrictive factory exhaust manifolds, performance headers give each cylinder its own dedicated exhaust path, reducing back pressure and improving exhaust flow. 2. By minimizing exhaust interference between cylinders, headers help increase horsepower and torque. When paired with a high performance cold air intake and a cat back exhaust