1990 Chevy Silverado Headers vs Stock Manifold

1990 CHEVROLET SILVERADO
160,000 MILES • V8 • 4WD • AUTOMATIC
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KEITH ENGLISH
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  • 1 POST
I would like to replace the factory exhaust manifold with headers to get better performance. will this give me better gas mileage and overall performance? .
Apr 14, 2008 at 7:03 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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