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SKU: 70017-AZ111 | UPC: 4957266274699
HKS SPF ND5RC P5-VP/P5-VPR Air Filter for 2015-2021 Subaru WRX STI
The HKS SPF ND5RC P5-VP/P5-VPR is a high-flow replacement air filter designed for the stock airbox on 2015-2021 Subaru WRX STI models. This panel filter uses advanced ND-05RC material to deliver increased airflow while maintaining strong filtration. Drivers experience quicker throttle response and added horsepower from improved air intake efficiency.
Key Features
- ND-05RC Filter Media: Wet-type urethane base with layered cotton elements traps fine dust particles up to 99% efficiency and allows 25% more airflow than OEM filters
- Pre-Oiled Design: Factory pre-oiled for immediate performance gains and easy maintenance with included cleaning kit
- Double-Layer Construction: Outer layer captures large debris inner layer filters micron-sized particles for engine protection
- Reusable and Washable: Clean every 10,000-20,000 miles to restore flow lasts up to 100,000 miles with proper care
- Direct Bolt-On Fit: Matches OEM dimensions for plug-and-play installation no airbox modifications required
Product Notes
- Filter oil and cleaning solution included for initial setup and ongoing maintenance
- Inspect and re-oil after washing to ensure peak performance
- Ships in protective foam packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Remove stock filter from airbox in under 5 minutes using basic tools
- Compatible with all stock hardware no additional parts needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2021 | Subaru | WRX STI | Sedan |
Why Choose HKS?
- 45+ years of JDM tuning expertise trusted in Super GT and rally racing
- Engineered in Japan with dyno-tested airflow data for real-world gains
- Precision-molded frame ensures leak-free seal and consistent performance
Frequently Asked Questions
-
Q: Will this fit my 2015-2021 WRX STI with aftermarket intake?
A: Designed for stock airbox only aftermarket cold air intakes may require different HKS models -
Q: What material is the ND5RC filter made from?
A: Wet polyurethane base with multi-layer cotton gauze for high dust capacity and low restriction -
Q: What is the warranty and cleaning process?
A: Lifetime warranty against defects clean with HKS solution soak dry and re-oil per instructions
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: 9.5 x 9 x 5 inches box with foam inserts
- Weight: 1.1 lbs
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