HKS Hi-Power 409 Exhaust

1993–1998 Nissan Skyline ECR33 RB25DET 2.5L

Part #: 31006-AN014

Overview

The HKS Hi-Power 409 Exhaust is a high-performance exhaust system designed specifically for the Nissan Skyline ECR33 with the RB25DET engine. Crafted to maximize exhaust flow and enhance your vehicle’s sound, this exhaust system is ideal for enthusiasts seeking to unlock the full potential of their turbocharged inline-six engine. Whether you're a street driver, a weekend racer, or an off-road enthusiast, the Hi-Power exhaust delivers a noticeable improvement in engine response and a deep, aggressive tone.

Built with precision and quality, the HKS Hi-Power exhaust system helps support increased horsepower and torque by optimizing exhaust flow from the engine. Its carefully engineered piping and muffler design ensure smooth, unrestricted flow, reducing backpressure and allowing your turbocharged engine to breathe more freely. The result is improved acceleration, a more responsive throttle, and a commanding exhaust note that turns heads.

Key Features

The HKS Hi-Power 409 Exhaust features several advanced design elements that set it apart from standard exhaust systems:

• Constructed from SUS304 stainless steel for exceptional durability, corrosion resistance, and a sleek appearance that maintains its finish over time.
• Utilizes coated SUH409 piping with a diameter of 95mm (approximately 3.74 inches), providing a significant increase in flow capacity compared to stock exhausts.
• Designed with a straight-through pipe layout to maximize exhaust velocity and minimize flow restrictions, resulting in improved engine performance.
• Features a 120mm tip that enhances the aggressive look and sound profile of your Skyline, delivering a deep, resonant exhaust note.
• Optimized for a direct bolt-on installation, ensuring a hassle-free upgrade without the need for cutting or welding.
• Engineered to provide a balance of performance, durability, and affordability, making it a popular choice among Nissan enthusiasts.

Construction & Design

The HKS Hi-Power 409 Exhaust is meticulously crafted from high-quality SUS304 stainless steel, known for its excellent corrosion resistance and strength. The piping is coated with SUH409, a material chosen for its durability and cost-effectiveness, ensuring long-lasting performance even under demanding conditions. The exhaust system features a one-piece construction with mandrel-bent tubing, which maintains consistent diameter throughout the bends to promote smooth airflow and reduce turbulence.

The muffler design incorporates a straight-through layout, which minimizes backpressure and enhances exhaust flow. The 120mm tip not only adds to the aesthetic appeal but also contributes to the deep, sporty exhaust tone that complements the turbocharged RB25DET engine. Overall, the system's design emphasizes durability, performance, and a refined sound profile, making it a perfect upgrade for those looking to improve their Skyline’s exhaust characteristics.

Installation & Fitment

The HKS Hi-Power 409 Exhaust is designed as a direct bolt-on upgrade for the Nissan Skyline ECR33 with the RB25DET engine. Its precise fitment ensures that no cutting, drilling, or welding is required during installation. The system mounts to factory hangers and uses OEM mounting points, allowing for a straightforward installation process that can typically be completed with basic hand tools. For optimal performance, it is recommended to have the exhaust system installed by a professional.

• Bolt-on installation with no modifications required
• Compatible with factory mounting points and hardware
• Designed for easy, hassle-free upgrade

What's Included

• HKS Hi-Power 409 Exhaust system with muffler and piping
• Exhaust tip (120mm diameter)
• All necessary clamps and hardware for installation
• Instruction manual

Ideal For

• Enthusiasts looking to improve exhaust flow and engine response
• Owners seeking a deep, sporty exhaust tone for their Nissan Skyline ECR33
• Performance drivers aiming to support increased horsepower and torque
• Those who want a durable, high-quality exhaust upgrade from a trusted brand