1999-2004 Pontiac Montana 3.4L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 NEW2310 Features dual stainless steel bellows

Features dual stainless steel bellows for optimal thermal expansion compliance

CNC precision-machined from high-quality aluminum for a perfect fit

Fit for Can-Am BRP Outlander Max 1000 4x4 EFI 2016-2017 Except 1000(R)

68003216AH

1999-2004 Pontiac Montana 3.4L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 NEW2310 Features dual stainless steel bellowsProduct 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