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SKU: 304-121-101
Weapon-R Secret Weapon Intake – 2002-2008 Nissan Maxima 3.5L / 2002-2007 Altima 3.5L
The Weapon-R Secret Weapon Intake is the #1 selling cold air intake system for 2002-2008 Nissan Maxima 3.5L and 2002-2007 Nissan Altima 3.5L. Patented secret weapon design with high-flow filter, heat shield, and polished aluminum piping delivers increased horsepower, improved throttle response, aggressive induction sound, and cooler intake air temperatures the ultimate intake upgrade for any VQ35DE build seeking performance gains, better engine bay aesthetics, and easy bolt-on installation.
Key Features
- Secret Weapon Design – Patented internal velocity stack and filter housing for maximum airflow and reduced turbulence
- High-Flow Washable Filter – Reusable oiled filter provides superior filtration and high-volume air intake
- Heat Shield Included – Blocks hot engine bay air for cooler, denser intake charge
- Polished Aluminum Piping – Mandrel-bent for smooth flow and show-quality engine bay appearance
- Direct Bolt-On Fitment – Engineered specifically for VQ35DE 3.5L engines in Maxima and Altima
| Spec | Detail |
|---|---|
| Part Number | 304-121-101 |
| Brand | Weapon-R |
| Type | Secret Weapon Cold Air Intake System |
| Filter Type | High-Flow Washable Oiled Cone |
| Piping Material | Polished Aluminum |
| Compatibility | 2002-2008 Nissan Maxima 3.5L / 2002-2007 Nissan Altima 3.5L (VQ35DE) |
| Country of Origin | United States |
| Warranty | Weapon-R Limited Warranty |
Whats Included
- Complete Secret Weapon intake system with polished piping
- High-flow washable air filter
- Heat shield assembly
- All mounting hardware and clamps
- Installation instructions
Product Notes
- Designed specifically for 2002-2008 Nissan Maxima 3.5L and 2002-2007 Nissan Altima 3.5L (VQ35DE)
- Improves horsepower and throttle response with cooler intake air
- Easy bolt-on installation; no modifications required
Installation Notes
- Direct bolt-on replacement for factory airbox
- Estimated time: 1–2 hours
- Professional installation recommended for proper MAF sensor alignment and filter oiling
This Part Fits
| Year Range | Make | Model | Trim / Engine | Notes |
|---|---|---|---|---|
| 2002-2008 | Nissan | Maxima | 3.5L (VQ35DE) | Secret Weapon intake |
| 2002-2007 | Nissan | Altima | 3.5L (VQ35DE) | Secret Weapon intake |
Why Choose Weapon-R Secret Weapon Intakes?
- #1 choice for patented high-flow intake design on VQ35DE engines
- Built & tested in the United States
- Chosen by Maxima and Altima owners for noticeable power gains, cooler IATs, and aggressive induction sound
Frequently Asked Questions
-
Q: Does this fit my 2005 Nissan Maxima 3.5L?
A: Yes, direct fit for 2002-2008 Nissan Maxima 3.5L and 2002-2007 Altima 3.5L (VQ35DE). -
Q: Will it require a tune?
A: No, bolt-on design works with stock ECU; gains are noticeable without tuning. -
Q: Does it include heat shield?
A: Yes, full kit includes heat shield to block hot engine bay air.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Official Weapon-R retail box
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