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Cold Air Intake System
Special Price
$349.99
Regular Price
$399.99
In stock
SKU
AEM-21-821DS
The 21-821DS Performance Cold Air Intake System produces horsepower and torque gains by replacing the restrictive air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Nissan 370Z models. This system replaces both the left and right side intakes. The AEM Dryflow synthetic washable air filter does not require oiling and can be used up to 100,000 miles before servicing is needed (depending on driving conditions). The heatshield is a two piece design and also utilizes the factory air ducting. The intake tube is constructed from mandrel bent aluminum and has a durable gray powder coat finish. This air intake system was developed to accommodate the mass air flow sensor and PCV hose.
- Increase Horsepower
- Tuned and dyno-tested to improve acceleration and engine sound
- Rotomolded Plastic Air Intake Tubing
- Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
- Washable and reusable oil-free filter media
| Estimated Horsepower Gain | 15 HP @ 7100 RPM |
| Replacement Filter | 21-202DOSK |
| Air Filter Color | Red |
| Air Filter Material | Non-woven Synthetic |
| Air Filter Outlet Shape | Round |
| Clamps Included | 6 |
| Clamp Material | Stainless Steel |
| Clamp Style | Regular |
| Couplers Included | None |
| Product Style | AEM Cold Air Intake System |
| Intake Pipe Color / Finish | Black |
| Intake Pipe Material | High-Density Cross-Linked Polyethylene |
| CARB EO Number | D-670-25 |
| Street Legal In All US States | Legal for use in all 50 states. |
| TUV Approved (Europe) | No |
| Weight | 13.8 lb (6.3 kg) |
| Product Box Height | 15 in (381 mm) |
| Product Box Length | 22.2 in (564 mm) |
| Product Box Width | 14.5 in (368 mm) |
| Mounting Hardware Included | Yes |
| Warranty | Limited Lifetime |
| Stillen 403230 |
+15
horsepower
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Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.
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