Speed Engineering Silverado Sierra Truck 1 3/4" Headers & Y-Pipe 99-06 4.8L 5.3L for Sale

Price: $410

This item has been shown 50766 times.

Silverado & Sierra Truck 1 3/4" Longtube Headers & Y-Pipe 1999-06 (4.8L, 5.3L) Speed Engineering headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our headers are mandrel bent, tig welded, and feature polished stainless steel construction. All of our headers have been dyno proven. We stand behind our headers in saying you will not find a better fitting, quality built, budget header for your vehicle.
Features include:

  • Mandrel Bent Tubing
  • Merge Spikes
  • Race Version with "NO" Air & EGR Fittings
  • Full 1 3/4" Primaries
  • 3" Collector
  • Gains over 25+ rwhp
  • V8 Engines Only
  • 4.8L, 5.3L, 6.0L Engines
  • CNC Machined Flanges
  • Polished 304 Stainless Steel
  • Standard Graphite Manifold Gaskets


Vehicle Applications:

  • 1999-06 Chevrolet Truck & SUV (2wd/4wd)
  • 1999-06 GMC Truck & SUV (2wd/4wd)
  • 1999-06 Cadillac Truck & SUV (2wd/4wd)
  • 1999-06 Chevrolet Avalanche (2wd/4wd)

Note: Does not fit vehicles with factory true dual exhaust. Please check prior to ordering.


Revised Y-Pipe: Now works with 4L60E & 4L80E transmissions. Also allows more room for 4wd vehicles.


Optional: Multi-Layer Steel Gaskets & Bolts GM (LS1, LS2, LS3, LS6, LS9)

(Click Image for Gasket Listing)



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