Exhaust Header
Stainless Steel Exhaust Header Manifold for Lexus 06-13 Exhaust Header for IS250 2.5L/IS350 3.5L V6
A two-piece stainless steel exhaust header manifold for 2006-2013 Lexus IS250 2.5L V6 and IS350 3.5L V6 DOHC RWD models. It features 1.75 inch inlet and 2.25 inch outlet diameters, TIG double side welded joints, CNC machined flanges, and a polished surface finish. Ships complete with two headers, gaskets, screws, and two pipes. Fitment is specific to RWD models and does not cover AWD or 4WD variants.
- MaterialStainless Steel
- SurfacePolished
- Inlet Diameter1.75 inch
- Outlet Diameter2.25 inch
What You Get
Key Benefits
- 1.75 inch inlet and 2.25 inch outlet improve exhaust flow and reduce back pressure
- TIG double side welding ensures strong, leak-free joints under high heat and vibration
- CNC machined flanges maintain flat sealing faces for consistent gasket compression
- Polished surface finish resists corrosion and improves heat dissipation
- Complete kit with gaskets, screws, and two pipes reduces installation prep time
Why Buyers Switch
Problems It Solves
- Factory headers restrict exhaust flow and limit power gains at high RPM
- Poorly welded headers leak at the joint under heat cycling and cause misfires
- Generic universal headers require cutting, welding, and custom fitment, increasing labour cost
- Unfinished or unfinished surfaces rust quickly in humid or coastal climates
- Missing gaskets and hardware force shops to source parts separately, delaying installation
Where It Is Used
Application Scenarios
- Performance shops upgrading RWD Lexus IS250 and IS350 models for improved throttle response
- Distributors stocking vehicle-specific headers for 2006-2013 Lexus V6 models
- Online sellers needing a photographed, fitment-verified part with clear specs
- Tuning shops installing headers that match factory routing without custom fabrication
Buyers
Who It Is For
- Performance parts distributors buying RWD Lexus exhaust hardware by the pallet
- Independent installation shops that require bolt-on headers with minimal fitment work
- Truck and car accessory wholesalers serving Japanese performance vehicle owners
Construction
Technical Features
- Two-piece construction with TIG double side welded joints
- 1.75 inch inlet diameter, 2.25 inch outlet diameter
- CNC machined flanges with (3-1)x2 bolt pattern
- Polished surface finish on both inner and outer tube surfaces
- Two headers, gaskets, screws, and two pipes included in the kit
- Designed for RWD 2006-2013 Lexus IS250 2.5L V6 and IS350 3.5L V6 DOHC models
Data
Specifications
| Material | Stainless Steel |
|---|---|
| Surface | Polished |
| Inlet Diameter | 1.75 inch |
| Outlet Diameter | 2.25 inch |
| Welding | TIG Double Side Welding |
| Flange | CNC Machined, (3-1)x2 Bolt Pattern |
| Package | 2x Headers, Gaskets, Screws, 2x Pipes |
| Exclusion | Does not fit AWD or 4WD models |
Material
Materials
- Stainless steel tube
- CNC machined flange
- Polished surface coating
Manufacturing
How It Is Made
Tube bending to match factory header routing
CNC machining of flanges for precise bolt hole alignment
TIG double side welding of joints for strength and leak resistance
Polishing of inner and outer surfaces to a uniform finish
Final inspection against fitment pattern before packaging
Checks
Quality Control
- Flange bolt pattern verified before welding
- Weld seams inspected for pinholes and incomplete fusion
- Surface checked for scratches, handling marks, or polishing defects
- Fitment test performed using factory flange pattern before packing
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 Lexus exhaust header | The stock header restricts flow with smaller ports and less smooth bends, limiting power gains |
|---|---|
| Mild steel aftermarket header | Mild steel is cheaper but rusts at the flange and welds over time; stainless steel lasts longer |
| Universal header kit | A universal kit requires cutting, welding, and custom fitting, increasing labour and risk of leaks |
Installation
Use Guide
- Confirm the vehicle is a 2006-2013 Lexus IS250 2.5L V6 or IS350 3.5L V6 DOHC RWD model
- Allow the exhaust system to cool completely before removing the factory header
- Replace the factory gaskets with the new ones provided to prevent leaks
- Install the headers using the included screws and torque them evenly in a crisscross pattern
- Recheck all flange bolt torques after the first heat cycle to maintain sealing integrity
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Answers
Questions About This Part
Does this fit a 2010 Lexus IS350 AWD model?
No. This header is designed for RWD 2006-2013 IS250 and IS350 models only and does not fit AWD or 4WD variants.
What is the inlet and outlet size?
Inlet diameter is 1.75 inch, outlet diameter is 2.25 inch. These match the factory header dimensions.
Are the flanges already welded on?
Yes. The headers come with CNC machined flanges already TIG welded to the tubes. No welding is required.
What is included in the package?
Two headers, two gaskets, screws, and two pipes. All components are included for a complete installation.
Is this a bolt-on replacement?
Yes. The headers are designed to bolt directly to the factory manifold and exhaust routing.
Can we get private label packaging?
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 claim emissions compliance for this part. Check your local regulations before resale or installation.
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