SKU: 31006-AN014 | UPC: (not listed in source; confirm with retailer)
HKS Hi-Power 409 Exhaust System – Nissan Skyline ECR33 RB25DET (1993-1998)
The HKS Hi-Power 409 Exhaust System (part 31006-AN014) is a high-performance cat-back exhaust designed for the Nissan Skyline ECR33 equipped with the RB25DET engine. This system features a straight-through design with a large 120mm tip and optimized 95mm piping for maximum exhaust flow, delivering improved horsepower, torque, and a deep, aggressive exhaust note. Constructed from durable S409 stainless steel, the Hi-Power 409 is engineered for both street and track use, providing better throttle response and a more exhilarating sound while maintaining reliability. The system is a direct bolt-on replacement that requires no modifications, making it a popular choice among Skyline enthusiasts looking for a balance of performance, sound, and value.
Key Features
- Hi-Power 409 Design – Straight-through muffler for maximum flow and aggressive sound
- Optimized Piping – Large diameter piping (up to 95mm) reduces backpressure
- S409 Stainless Steel – Durable and corrosion-resistant construction
- 120mm Tip – Bold rear appearance with excellent flow characteristics
- Bolt-On Installation – Direct replacement for the factory exhaust system
| Spec | Detail |
|---|---|
| Part Number | 31006-AN014 |
| Brand | HKS |
| Type | Hi-Power 409 Cat-Back Exhaust System |
| Compatibility | 1993-1998 Nissan Skyline ECR33 RB25DET |
| Material | S409 Stainless Steel |
| Tip Diameter | 120mm |
| Center Pipe Diameter | 95mm |
| Country of Origin | Japan |
| Warranty | HKS Limited Warranty |
Whats Included
- Complete Hi-Power 409 Cat-Back Exhaust System
- All necessary gaskets, clamps, and hardware
- Installation instructions
Product Notes
- Designed specifically for the Nissan Skyline ECR33 with RB25DET engine
- Delivers deeper, more aggressive exhaust note with improved performance
- Professional installation recommended
Installation Notes
- Bolt-on cat-back system – no welding required
- Estimated time: 2–4 hours
- Professional installation recommended for proper alignment and torque
This Part Fits
| Year Range | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 1993-1998 | Nissan | Skyline ECR33 | RB25DET Turbo | Hi-Power 409 Cat-Back Exhaust System |
Why Choose HKS Hi-Power Exhaust Systems?
- Proven performance from decades of racing and tuning experience
- Optimized straight-through design for maximum flow and power
- High-quality Japanese engineering with excellent fitment and sound
Frequently Asked Questions
- Q: Will this exhaust system fit my 1995 Nissan Skyline ECR33 RB25DET?
A: Yes, it is designed specifically for the 1993-1998 Nissan Skyline ECR33 with the RB25DET engine. - Q: How loud is the Hi-Power 409 system?
A: It produces a deep, aggressive exhaust note that is noticeably louder than stock while remaining street-friendly in most regions. - Q: Is professional installation recommended?
A: Yes, proper alignment and secure mounting are important for optimal performance and longevity.
Shipping & Handling
- Method: Ground UPS or FedEx (oversize may apply)
- Availability: In stock – ships same or next business day
- Packaging: Secure HKS retail packaging
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