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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
For 2011-2015 Chevrolet SILVERADO 3500HD 6
8x Spark Plug 41-962
For GMC Sierra 1500 HD 2001-2003
for Indmar 5
Chevy Small Block Roadster Sprint 1-5/8" Stainless Steel Manifold Header H8069 402 For 2011-2015 Chevrolet SILVERADO 3500HDProduct 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
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