2002-2005 Nissan Altima / 2004-2006 Quest V6 Catalytic Converter
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
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.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.