SKU: 31006-AN016 | UPC: 4957266915592
HKS Hi-Power 409 Stainless Steel Cat-Back Exhaust for 1998-2002 Nissan Skyline R34 ER34 4-Door Sedan RB25DET
The HKS Hi-Power 409 is a full SUS409 stainless steel cat-back exhaust system designed exclusively for the Nissan Skyline R34 ER34 4-door sedan with RB25DET engine. It replaces the stock system from the catalytic converter back delivering noticeable power gains and a deep aggressive exhaust note. This direct-fit upgrade improves exhaust flow for enhanced throttle response and turbo spool on 1998-2002 ER34 models.
Key Features
- SUS409 Stainless Steel Build: Full 409-grade stainless construction resists corrosion and withstands high heat for long-lasting durability in demanding conditions
- 80mm Main Piping: Mandrel-bent large-diameter pipes reduce backpressure increasing horsepower by 12 PS over stock for quicker acceleration
- Dual 15L Mufflers: Twin oval silencers produce a refined deep tone at idle that builds to a sporty roar under load without excessive drone
- Weight Reduction: System weighs 17 kg compared to stock 32.8 kg shedding 15.8 kg for improved handling and reduced unsprung mass
- Exact Bolt-On Fit: Precision flanges and hangers ensure seamless installation matching factory routing on ER34 RB25DET chassis
Product Notes
- Cat-back design bolts to existing catalytic converter preserving emissions setup
- Inspect turbo downpipe connection during install for optimal sealing
- Packaged in heavy-duty box measuring 48 x 20 x 20 inches for secure transit
Installation Notes
- Professional installation recommended.
- Bolt-on replacement takes 1-2 hours with basic tools and exhaust clamps
- Compatible with factory rubber hangers and midpipe flange no cutting required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998-2001 | Nissan | Skyline | ER34 250GT RB25DET |
| 1998-2001 | Nissan | Skyline | ER34 250GT Type S RB25DET |
| 1998-2001 | Nissan | Skyline | ER34 250GT Turbo RB25DET |
Why Choose HKS?
- Motorsport heritage with decades of JDM tuning expertise
- JDM-quality materials tested for real-world power and reliability
- Engineered in Japan with dyno-proven gains for RB-series engines
Frequently Asked Questions
- Q: Will this fit R34 coupe or wagon models?
A: No this exhaust is engineered specifically for ER34 4-door sedan chassis and RB25DET only coupe GT-R or wagons use different part numbers - Q: What material is used and is it polished?
A: Constructed from full SUS409 stainless steel with a satin brushed finish for heat resistance and easy maintenance no painting needed - Q: What is the warranty and install difficulty?
A: HKS offers 1-year manufacturer defect warranty bolt-on design suits DIY with ramps professional tuning advised for ECU remap after install
Shipping & Handling
- Method: UPS Ground or FedEx standard parcel
- Availability: In stock – ships same or next business day
- Packaging: Original HKS box 48 x 20 x 20 inches
- Weight: 17 kg product 20 kg shipping
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