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Nissan Skyline ECR33 cat-back exhaust
HKS cat-back RB25DET pieces
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HKS Hi-Power 409 ECR33 RB25DET

HKS
HKS31006-AN014
4957266915608
Catback
Out of stock
$ 700.00
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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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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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