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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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HKS
HKS is a Japanese manufacturer of premium performance parts founded in 1973 that has been at the forefront of turbocharged engine development, producing turbochargers, exhaust systems, engine management, intercoolers, and supporting performance components for some of the most iconic Japanese sports cars ever built. The brand's GT and GTIII turbocharger series, Super Sequential Blow Off Valves, and Racing Suction intake kits are recognized globally as benchmark-quality products that combine Japanese manufacturing precision with decades of motorsport development experience. HKS products are particularly well-known in the Toyota Supra, Mitsubishi Evo, Subaru STI, Nissan GT-R, and Honda NSX communities, where the brand's heritage in building the world's fastest versions of these cars has created a loyal following among enthusiasts who want the best available components. From a simple racing suction kit to a complete GT turbo with intercooler and ECU tune, HKS provides an end-to-end perf...
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