02-06 Nissan Altima 2.5L QR25DE Header Stainless Steel
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-4956-NIS-006-EC
- Manufacturer part number
- K2-4956-NIS-006-EC
- UPC
- HDS-NA02-L4
- Category
- Engine Components
- Shipping weight
- 2.0 lb
02-06 Nissan Altima 2.5L QR25DE Header Stainless Steel
Stainless steel header designed to free up exhaust flow on the QR25DE engine. Built from mandrel-bent tubing for consistent diameter and minimal restriction. Direct bolt-on fit replaces the factory cast iron manifold.
Key Features
- Mandrel-bent tubing - Maintains consistent bore diameter for smooth flow without kinks or crimping
- Stainless steel material - Resists corrosion and heat cycling over time
- Bolt-on design - Uses factory mounting points with no welding or modifications required
Specs
- Material: Stainless Steel
- Configuration: Mandrel-bent tubing
- Condition: New
Whats Included
- Header assembly only
Frequently Asked Questions
Do I need new gaskets when installing this header?
Yes. Factory gaskets are single-use and won't seal properly on a second installation. Grab a fresh header gasket kit before you bolt this up.
Will this bolt directly to my stock exhaust piping?
The header uses factory mounting points, but you'll need to confirm your downstream exhaust piping aligns with the outlet diameter. Test-fit before finalizing connections.
Does this need any prep work before installation?
Clean the mounting surface on the cylinder head to remove old gasket material and dirt. No painting or coating work is needed — the stainless steel is ready to install as-is.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
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Answers to common questions are on our FAQ page.
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