1990 Chevy Silverado Headers vs Stock Manifold

1990 CHEVROLET SILVERADO
160,000 MILES • V8 • 4WD • AUTOMATIC
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KEITH ENGLISH
  • MEMBER
  • 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
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RHALL77
  • ✓ASE Certified Mechanic
  • 3,361 POSTS
  • ASE Certified Mechanic
performance yes, not sure about fuel mileage.
Apr 14, 2008 at 7:17 AM
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