Exhaust Header · SKU ESP-0005
Exhaust Header Downpipe for Corvette 97-04 5.7 Long Tube 1-7/8 Inch X Pipe
A 3 inch long tube exhaust header downpipe with 1-7/8 inch primaries and a 3 inch x 3 inch x 2.25 inch X-pipe for the 1997-2004 Chevrolet Corvette 5.7L V8. It replaces the factory exhaust manifold and connects directly to the factory catalytic converter. The part is built for performance and fitment, with a single piece header and X-pipe design that maintains factory routing and bolt patterns. It does not include gaskets or hardware.
- MaterialStainless Steel
- Primary Size1-7/8 inch
- Collector Size3 inch
- X Pipe Inlet3.00 inch
What You Get
Key Benefits
- 1-7/8 inch primary tubes improve exhaust flow and scavenging on the 5.7L V8 engine
- 3 inch piping diameter reduces back pressure across the entire header and X-pipe section
- X-pipe with 3.00 inch inlet and 2.25 inch outlet balances flow between cylinder banks
- Single piece construction eliminates weld joints between header and X-pipe for consistent flow
Why Buyers Switch
Problems It Solves
- Factory exhaust manifolds restrict flow and limit engine breathing at high RPM
- Universal headers require cutting and welding, which increases labour and risk of leaks
- Poorly aligned X-pipes cause uneven exhaust pulses and reduce power output
- Flanges that are not flat or machined properly leak at high exhaust temperatures
Where It Is Used
Application Scenarios
- Performance shops upgrading classic Corvettes for track or street use
- Distributors stocking vehicle-specific exhaust parts for 1997-2004 Corvettes
- Online sellers needing a photographed, fitment-verified part with no custom fabrication
- Tuning shops installing headers that match factory mounting points and routing
Buyers
Who It Is For
- Performance parts distributors buying Corvette exhaust hardware by the pallet
- Independent installation shops that require bolt-on parts with no welding
- Online auto parts sellers serving North American classic car owners
Construction
Technical Features
- Long tube header with 1-7/8 inch primary tubes and 3 inch collector outlet
- 3 inch diameter X-pipe with 3.00 inch inlet and 2.25 inch outlet
- Single piece header and X-pipe assembly with no intermediate welds
- Factory routing and bolt pattern maintained for direct bolt-on fit
Data
Specifications
| Material | Stainless Steel |
|---|---|
| Primary Size | 1-7/8 inch |
| Collector Size | 3 inch |
| X Pipe Inlet | 3.00 inch |
| X Pipe Outlet | 2.25 inch |
| Piping Diameter | 3 inch |
| Package | 1x Header Downpipe |
Material
Materials
- Stainless steel tube
Manufacturing
How It Is Made
Tube bending to match factory header routing
Welding of X-pipe to collector with full seam coverage
Final fit check against factory mounting points before packing
Checks
Quality Control
- Flange sealing face checked for flatness before welding
- Weld seams inspected for pinholes and gaps along the full joint
- X-pipe inlet and outlet dimensions verified against the spec sheet
- Final assembly checked for alignment with factory bolt holes
Private Label
Customisation Options
- Private label packaging and barcode labels on request
- Bulk cartons available for container orders instead of retail boxes
Comparison
Compared With The Alternatives
| Factory exhaust manifold | The stock manifold restricts flow with narrow primaries and a small collector; this header improves scavenging and power output |
|---|---|
| Universal header kit | A universal kit requires cutting and welding to fit; this one bolts on without modification |
| Shorty header | Shorty headers have shorter primaries and less flow improvement; this long tube design maximizes exhaust velocity |
Installation
Use Guide
- Confirm the vehicle is a 1997-2004 Chevrolet Corvette 5.7L V8 and not a 4.8L or 6.0L model
- Let the engine cool completely before removing the factory exhaust manifold
- Replace the factory gasket rather than reusing it to prevent leaks
- Torque flange bolts evenly in a cross pattern to maintain sealing face flatness
- Recheck torque after the first heat cycle to prevent creep-related leaks
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Answers
Questions About This Part
Will this fit a 2004 Corvette with a 6.0L engine?
No. The part is designed for the 1997-2004 Chevrolet Corvette 5.7L V8 and does not fit 6.0L models.
What size are the primary tubes?
1-7/8 inch. The primaries are 1-7/8 inch OD and connect directly to the cylinder heads.
Is the X-pipe included in the package?
Yes. The header downpipe includes the 3 inch X-pipe with 3.00 inch inlet and 2.25 inch outlet.
Do I need to buy gaskets and hardware separately?
Yes. Gaskets and hardware are not included. Use a new factory-style gasket for the header and X-pipe joints.
Can I use this on a track-only car?
Yes. The part is built for performance use and handles high exhaust temperatures and flow rates.
Is this compatible with a factory catalytic converter?
Yes. The collector outlet is 3 inch OD and matches the factory catalytic converter inlet.
Can we get private label packaging?
Yes. Private label packaging and barcode labels are available on request. Bulk cartons are also available for container orders.
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