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SKU: 70019-AN105 | UPC: 4957266257197
HKS Super Power Flow Air Filter for 1991-1998 Nissan Skyline ECR33 and 1998-2002 WGNC34 RB25DET
This HKS Super Power Flow SPF is a direct replacement panel air filter designed for Nissan Skyline models equipped with the RB25DET engine. It fits ECR33 R33 sedans and WGNC34 R34 sedans by dropping into the factory airbox without modifications. Expect noticeable improvements in engine breathing higher airflow volume and quicker throttle response for everyday driving or track use.
Key Features
- High-Flow Filter Media: Double-layer urethane construction traps fine dust while allowing 25 percent more air volume than stock filters for stronger mid-range torque.
- Low Intake Resistance: Specialized HKS material reduces restriction by up to 30 percent boosting horsepower and acceleration without ECU changes.
- Wet-Type Design: Oiled filter element enhances flow efficiency and captures particles effectively for long-term engine protection.
- Direct Bolt-On Fit: Precision-shaped to match OEM dimensions 252mm x 202mm x 48mm ensuring seamless installation in stock airbox.
- Washable and Reusable: Clean with HKS filter cleaner and reapply oil for repeated use extending service life beyond disposable filters.
Product Notes
- Apply HKS filter oil after cleaning to maintain performance levels.
- Inspect and service every 10,000 miles or sooner in dusty conditions.
- Handle with care to avoid deforming the filter frame during shipping or storage.
Installation Notes
- Professional installation recommended.
- Remove stock filter from airbox no tools required for most vehicles.
- Uses factory mounting points and clips compatible with OEM airbox lid.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1991-1998 | Nissan | Skyline | ECR33 GTS25t RB25DET |
| 1998-2002 | Nissan | Skyline | WGNC34 GTS-t RB25DET |
Why Choose HKS?
- HKS leads JDM performance with 50 years of turbocharger expertise.
- Engineered and dyno-tested in Japan for reliable power gains.
- Made with precision materials for motorsport durability on street or track.
Frequently Asked Questions
-
Q: Will this fit R33 GT-R BNR33 or R34 GT-R models?
A: No it fits only ECR33 sedan GTS25t and WGNC34 sedan GTS-t with RB25DET engines not GT-R RB26DETT variants. -
Q: What material is the filter made from and does it require oil?
A: Wet-type urethane foam filter pre-oiled from factory re-oil after washing with HKS products for peak performance. -
Q: What is the warranty and service interval?
A: HKS offers 1-year warranty clean every 10,000 miles or annually based on driving conditions.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Original HKS box dimensions 11 x 9 x 3 inches
- Weight: 0.71 lbs (320g)
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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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