Flashark

Long Tube Headers & Y-Pipe for 1999-2006 Chevy / GMC Silverado / Avalanche / Sierra 1500 4.8L / 5.3L / 6.0L Vortec with Optional Cold Air Intake

$269.99
$399.99 $269.99
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Fix the "Chevy Tick" & Wake Up Your Vortec V8

Is your 1999-2006 Silverado or Sierra ticking on cold starts? The factory cast-iron manifolds are notorious for warping and snapping bolts, restricting the potential of your 4.8L, 5.3L, or 6.0L Vortec engine.

The Solution: Flashark Long Tube Headers with Y-Pipe. Eliminate the restrictive stock manifold, fix the exhaust leak permanently, and unleash +20-25 HP and massive torque across the entire 4.8L, 5.3L, and 6.0L lineup.

Key Features

  • 100% Brand New: Never used or installed.
  • High-Flow Design: Increases air flow instantly, gaining 20-25+ HP (with tune) and Torque.
  • Premium Material: Made of high-quality Polished Stainless Steel for durability.
  • Precision Welding: TIG welded CNC machine flanges for resistance against pressure and corrosion.
  • Mandrel-Bent Tubing: Ensures smooth exhaust flow for maximum performance.
  • Direct Bolt-On: Designed for easy installation with no modification needed for 2WD models.
  • Complete Kit: Includes headers, Y-pipe, necessary hardware, bolts, and gaskets.

Header Specifications:

Item Specs
Color Black / Silver
Finish Mirror Polished
Inlet/Outlet 1.83" / 2.84"
Connection 2×4-1 Manifold to 3" Y-pipe
Craft TIG Weld, CNC Flange
Install Bolt-on

Installation & Sound Clip

Hear the difference on a Cammed 5.3L Silverado:

📦 Packing List:

  • Long Tube Headers (Pair)
  • 3" Y-Pipe
  • Gaskets
  • Hardware