Unlock the full potential of your 1988–98 Chevy/GMC Truck with premium long tube headers from Stainless Works. These headers feature 1-7/8" mandrel bent primary tubes that flow into 2-1/2" lead pipes. Includes high-flow catalytic converters.
This system connects directly to the stock exhaust using the included Y-pipe or to Stainless Works using the X-pipe for a complete performance upgrade. Designed specifically for the GMT400 platform.
Built from corrosion-resistant 304 stainless steel and fully TIG welded for strength and durability at our state-of-the-art facility in Streetsboro, Ohio — engineered for long-term performance.
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American-made from raw material to finished product
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TIG welded by skilled craftsmen for strength and beauty
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Lifetime warranty on material and craftsmanship
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Direct bolt-on fit for 1988–98 Chevy/GMC Truck
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Available with Factory Connection or Performance Connect
| Vehicle Fitment | 1988–98 Chevy Silverado / GMC Sierra — GMT400 |
| System Type | Long Tube Header Kit |
| Primary Tube Size | 1-7/8" |
| Lead Pipe Size | 2-1/2" |
| Catalytic Converters | EPA Compliant High-Flow |
| Connection Options | Y-Pipe (Factory) — or — X-Pipe (Performance Connect) |
| Wheelbase | Only Fits 142" Wheelbase 5.7L Small Block Chevy |
| Drivetrain | 4WD Only |
| Material | 304 Stainless Steel |
| Welding | TIG Welded |
| Warranty | Lifetime |
| Origin | Made in USA — Streetsboro, Ohio |
⚠️ IMPORTANT FITMENT NOTES
Only fits 142" wheelbase models.
Only fits 4WD models.
Only Fits Small Block Chevy
ℹ️ CONNECTION OPTIONS
This system connects directly to the stock exhaust using the included Y-pipe or to Stainless Works using the X-pipe for a complete performance upgrade.
This header system fits the 1988–1998 Chevy Silverado / GMC Sierra GMT400 in the following configurations:
✓ 5.7L
✓ 4WD Models Only
✓ Performance Connect — X-Pipe to Stainless Works
*Only fits 142" wheelbase
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Driver & Passenger Side Headers x2
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O2 Bung Plug
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Catalytic Converters x2
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Lead Pipes x2
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Y-Pipe or X-Pipe
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Clamps x7
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Bolt Kit — 16 Pieces
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RTV Tube
Questions? Call us at 800-878-3635 | Mon–Fri 7:30am–4:30pm EST
Built To Order in 4 Weeks — Free Shipping on Orders $50+
