Exhaust Header · SKU SPAS-1006
STAINLESS STEEL LONG TUBE HEADER FOR CHEVY GMC 07-14 4.8 5.3 6.0L EXHAUST+Y-PIPE
A pair of 3 inch outlet 1.75 inch primary tube long tube exhaust headers with CNC machined flanges and TIG double side welding for the 2007-2014 Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, and Cadillac Escalade with 4.8L, 5.3L, 6.0L, and 6.2L engines. The headers ship as a complete kit with gaskets and are built from 201 stainless steel with a 3 stage polish finish. Fitment is year and model specific and does not cover trucks with factory exhaust manifolds or V8 engines with different routing.
- Surface3 Stage Polish
- Primary Tube Size1.75 inch
- Outlet Size3.00 inch
- FlangeCNC machined, 7/16 inch head flange, 3/8 inch outlet flange
What You Get
Key Benefits
- 3 inch outlet size improves exhaust flow and reduces back pressure compared to the factory 2.5 inch manifolds
- 1.75 inch primary tubes match the factory cylinder head port size for consistent flow path
- CNC machined flanges ensure a flat sealing face for a leak-free joint at the cylinder head
- TIG double side welding provides stronger joints than MIG welding alone, reducing the risk of fatigue cracks
- 3 stage polish finish gives a clean, reflective surface that resists surface rust and shows well in product photos
Why Buyers Switch
Problems It Solves
- Factory exhaust manifolds restrict flow and cause high exhaust gas temperatures under load
- Mild steel headers rust at the flange within a few seasons, especially in humid or salted climates
- Poorly fitted flanges leak at the cylinder head and cause vacuum leaks or misfires
- Universal headers require cutting and welding, which adds shop labour and reduces margin
Where It Is Used
Application Scenarios
- Performance shops upgrading older GM trucks with restrictive factory manifolds
- Distributors stocking vehicle-specific headers for the 2007-2014 model years
- Online sellers needing a photographed, fitment-verified part with clear application data
- Tuning shops installing headers on trucks that need better exhaust scavenging for high RPM power
Buyers
Who It Is For
- Performance parts distributors buying direct from the factory for regional markets
- Diesel and truck accessory wholesalers serving North American light truck owners
Construction
Technical Features
- Pair of long tube headers with 8-2 primary tube design and 3 inch outlet
- 1.75 inch primary tube diameter matched to factory cylinder head port size
- CNC machined flanges with 7/16 inch head flange thickness and 3/8 inch outlet flange thickness
- TIG double side welded construction for joint strength and durability
- 3 stage polish finish on both interior and exterior surfaces
- Includes two headers and gaskets for the complete kit
Data
Specifications
| Surface | 3 Stage Polish |
|---|---|
| Primary Tube Size | 1.75 inch |
| Outlet Size | 3.00 inch |
| Flange | CNC machined, 7/16 inch head flange, 3/8 inch outlet flange |
| Welding | TIG Double Side Welded |
| Package | 2x Headers, 2x Gaskets |
| Fitment | 2007-2014 Chevrolet Silverado 1500/2500/3500, Suburban 1500/2500, Tahoe, GMC Sierra 1500, Yukon, Cadillac Escalade with 4.8L, 5.3L, 6.0L, 6.2L V8 |
| Exclusion | Does not fit trucks with factory exhaust manifolds or different engine routing |
Material
Materials
- 201 stainless steel tube
- CNC machined flanges
- Gaskets included
Manufacturing
How It Is Made
Tube bending to match factory header routing
CNC machining of flanges for flat sealing face and precise bolt hole alignment
TIG double side welding of flanges to tubes for strength and leak resistance
3 stage polishing process: coarse, medium, and fine to achieve reflective finish
Final inspection of fit and finish before packaging
Checks
Quality Control
- Flange bolt pattern and hole alignment checked before welding
- Weld seams inspected for pinholes and incomplete fusion along the full joint
- Surface checked for polish defects, scratches, and handling marks before packing
Private Label
Customisation Options
- Private label packaging and barcode labels available on request
- Bulk cartons for container orders instead of individual retail boxes
Comparison
Compared With The Alternatives
| Factory exhaust manifolds | Factory manifolds are designed for emissions and noise control, this header improves flow and reduces back pressure |
|---|---|
| Mild steel aftermarket headers | Mild steel is cheaper but rusts at the flange; 201 stainless resists corrosion in salt and moisture |
| Universal cut-to-fit headers | Universal headers require cutting and welding; this kit bolts on without modification |
Installation
Use Guide
- Confirm the vehicle is a 2007-2014 model with 4.8L, 5.3L, 6.0L, or 6.2L V8 engine and not a truck with factory exhaust manifolds
- Remove the factory manifolds and clean the cylinder head flange surfaces before installing
- Use new gaskets and torque bolts in a crisscross pattern to prevent warping
- Check for exhaust leaks after the first heat cycle and re-torque if needed
- Do not reuse old gaskets; the included gaskets are for one-time use
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Answers
Questions About This Part
Will this fit a 2012 Silverado 1500 with a 5.3L V8?
Yes. The part covers 2007-2014 Chevrolet Silverado 1500 with 4.8L, 5.3L, 6.0L, and 6.2L V8 engines.
What is included in the package?
Two headers and two gaskets. No installation instructions or hardware are included.
Is this a bolt-on replacement?
Yes. The headers are designed to bolt directly to the factory cylinder head and routing.
What material is used and why does it matter?
201 stainless steel with a 3 stage polish. It resists rust and heat better than mild steel, especially at the flange where corrosion starts.
Are the flanges CNC machined?
Yes. Both the head and outlet flanges are CNC machined for flatness and precise bolt hole alignment.
Can we get our own brand on the box?
Yes. Private label packaging and barcode labels can be arranged, and bulk cartons are available for container orders.
Is this street legal where I sell?
Emissions rules differ by market and we make no emissions approval claim for this part. Check your local regulations before resale.
Get This Part Quoted
Send the quantity you need and your market, and the reply will cover price, packing and lead time.