1989 Chevrolet R3500/V3500 Header Exhaust Manifold Y2202 upgrading the main jet by

upgrading the main jet by 15–25% is recommended when using the stock air filter

Fit for Polaris Outlaw 90 2007-2016

Cylinder Base Gasket: 11241-38F00

13001-0747

Delivers an aggressive deep exhaust tone while maintaining smooth gas flow

1989 Chevrolet R3500/V3500 Header Exhaust Manifold Y2202 upgrading the main jet byProduct 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