2002-2005 Nissan Altima / 2004-2006 Quest V6 Catalytic Converter
K2 Industries
2002-2005 Nissan Altima / 2004-2006 Quest V6 Catalytic Converter
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with original packaging and all included parts. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
Product information from K2 Industries
Manufacturer warranty and guarantee statements below are subject to that manufacturer’s terms. For return eligibility through Lee Mods, see Returns & Exchanges. Ask Lee Mods to clarify any warranty or guarantee before ordering.
Catalytic Converter — Nissan Altima / Quest V6
Direct-fit catalytic converter engineered for Nissan V6 engines. Meets emissions standards while restoring flow in your exhaust system. Built for straightforward bolt-on installation at factory attachment points.
Key Features
- Direct OEM replacement design - Bolts in at factory locations without modification
- V6 engine calibration - Sized and tuned for proper backpressure and flow
- No cutting or welding required - Slip-fit connection to existing exhaust piping
Specs
- Application: V6 engine
- Assembly: Complete catalytic converter unit
- Condition: New
Whats Included
- Catalytic converter assembly
Frequently Asked Questions
Will this bolt directly to my existing exhaust?
Yes — it connects at factory slip-fit joints with no modifications. Test-fit before final tightening to confirm clearance at your vehicle's mounting brackets and underbody.
Do I need to replace the oxygen sensors?
Check your vehicle's service manual. Some V6 models require sensor replacement during converter swap; others reuse existing sensors. Have a shop or service manual confirm before you start.
What if the converter doesn't fit after I open it?
Contact us within 30 days of delivery with photos of the fitment issue. We'll verify the application match and work out next steps — no hassle.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-7875-NIS-006-EXH |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information