Exhaust Parts · SKU 701807502260
SPEEDRACINGTURBO EXHAUST HEADER COLLECTOR SLIP ON 1 3/4 Inch TUBE 3.5 Inch SINGLE NEW
A 1-3/4 inch primary tube, 3.5 inch single collector slip-on exhaust header for performance engines. Built from 304 stainless steel with a silver finish, it features a 4 into 1 design to maximize exhaust flow and power output. Ships as a complete unit with no welding required. Fitment is not vehicle-specific and is intended for custom or universal applications.
- MaterialStainless Steel 304
- SurfaceSilver
- Primary Tube Size1-3/4 inch
- Collector Size3.5 inch
What You Get
Key Benefits
- 1-3/4 inch primary tubes with a 3.5 inch single collector allow for high-flow exhaust gas exit and improved engine breathing
- 304 stainless steel construction resists rust and heat degradation better than mild steel or cast iron
- Silver finish provides a clean, durable surface that resists oxidation and shows well in photos
- Slip-on design fits over existing headers or manifolds without welding, reducing installation time
- 4 into 1 collector design promotes scavenging and improves low-end torque and mid-range power
Why Buyers Switch
Problems It Solves
- Stock manifolds restrict exhaust flow and limit engine power at higher RPMs
- Cast iron headers crack under heat cycling and are heavy, reducing performance
- Universal headers require cutting and welding, which increases labor cost and risk of leaks
- Mild steel headers rust quickly at the collector and flange, reducing lifespan
Where It Is Used
Application Scenarios
- Performance shops building custom exhaust systems for race or street engines
- Distributors stocking universal header components for engine builders and tuners
- Online sellers needing a photographed, vehicle-agnostic exhaust part with a clear fitment description
- Engine builders upgrading stock manifolds to improve exhaust efficiency without full header replacement
Buyers
Who It Is For
- Performance engine builders working on custom builds
- Diesel and gasoline engine tuners who need a high-flow collector for modified systems
- Online auto parts sellers offering universal exhaust components for engine swaps
Construction
Technical Features
- Single 3.5 inch collector with 4 x 1-3/4 inch primary tubes
- 304 stainless steel construction with silver finish
- Slip-on design for easy installation over existing header flanges
- 4 into 1 collector layout to improve exhaust scavenging
- 12 inch overall length for standard fitment in most engine bays
Data
Specifications
| Material | Stainless Steel 304 |
|---|---|
| Surface | Silver |
| Primary Tube Size | 1-3/4 inch |
| Collector Size | 3.5 inch |
| Design | 4 into 1 |
| Length | 12 inch |
| Installation Type | Slip-on |
| Fitment | Universal, not vehicle-specific |
| O2 Sensor Ports | 4 |
Material
Materials
- 304 stainless steel tube and collector
- Silver finish (no coating or paint)
Manufacturing
How It Is Made
Tube bending to form 1-3/4 inch primary tubes
Collector casting and machining for a smooth internal surface
Final inspection for weld integrity and dimensional accuracy
Checks
Quality Control
- Weld seams inspected for porosity and incomplete fusion
- Collector bore checked for smoothness and consistent diameter
- Tube alignment verified before final welding
- Surface finish inspected for scratches, handling marks, or coating defects
Private Label
Customisation Options
- Private label packaging available on request
- Bulk cartons for container orders instead of individual boxes
Comparison
Compared With The Alternatives
| Factory cast iron manifold | Cast iron is heavier, prone to cracking, and restricts flow; this header improves flow and reduces weight |
|---|---|
| Mild steel slip-on header | Mild steel is cheaper but rusts quickly at the collector and flange; 304 stainless resists corrosion and lasts longer |
| Full custom header with welding | A custom header requires welding and fitting, this one ships ready to install as a slip-on unit |
Installation
Use Guide
- Confirm the header fits over your existing header flanges or manifold flanges
- Clean the mating surfaces before installation to ensure a tight seal
- Use new gaskets and hardware to prevent leaks at the joint
- Torque bolts evenly in a crisscross pattern to avoid warping the flange
- Check for exhaust leaks after initial engine run and re-torque if needed
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Answers
Questions About This Part
Is this part compatible with my vehicle?
This is a universal slip-on header and not vehicle-specific. Confirm it fits your existing header flanges or manifold before ordering.
What material is used and why does it matter?
304 stainless steel. It resists heat and corrosion better than mild steel or cast iron, and maintains strength under high exhaust temperatures.
Does it include gaskets or bolts?
No. Gaskets and hardware are not included. Use new, high-temperature gaskets and proper bolts for a leak-free seal.
Can I install this without welding?
Yes. It is a slip-on design that fits over existing header flanges. No welding is required for installation.
What is the pipe size and collector size?
Primary tubes are 1-3/4 inch. The collector is 3.5 inch, designed to fit a 3.5 inch exhaust pipe or downpipe.
Can I get this with my brand on the box?
Yes. Private label packaging and barcode labels can be arranged. Bulk cartons are available for container orders.
Is this street legal in my country?
We do not make emissions approval claims. Check your local regulations before installing or reselling this part.
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