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SKU: 31019-AM006 | UPC: 4957266914823
HKS Silent Hi-Power Exhaust – JDM Evo IV-VI
The HKS Silent Hi-Power exhaust system for JDM Mitsubishi Lancer Evolution IV-VI. Race-inspired offset muffler and straight-through piping design in SUS304 stainless steel delivers refined, quiet performance, improved exhaust flow, better mid-range boost response, and high-RPM power gains the ultimate exhaust upgrade for any Evo IV-VI build seeking sophisticated sound, durability, and performance without excessive noise.
Key Features
- Silent Hi-Power Design – Inner silencer for quiet operation with race-inspired flow characteristics
- SUS304 Stainless Steel – Premium corrosion-resistant material for long-lasting durability
- Straight-Through Piping – Minimizes bends for maximum exhaust velocity and power
- Offset Muffler – Endurance/GT racing-inspired layout for improved mid-range boost and high-RPM performance
- HP (TYPE-S) Tip – 120mm polished stainless tip for aggressive, clean styling
| Spec | Detail |
|---|---|
| Part Number | 31019-AM006 |
| Brand | HKS |
| Type | Silent Hi-Power Exhaust System |
| Material | SUS304 Stainless Steel |
| Piping Diameter | 75 mm |
| Tip Size / Style | 120 mm / HP (TYPE-S) |
| Sound Level (Idle) | 82 dB |
| Sound Level (Close) | 93 dB |
| Compatibility | JDM Mitsubishi Lancer Evolution IV-VI (CN9A/CP9A) |
| Country of Origin | Japan |
| Warranty | HKS Limited Warranty |
Whats Included
- Complete Silent Hi-Power exhaust system
- HP (TYPE-S) 120mm tip
- All necessary gaskets, clamps, and hardware
- Installation instructions
Product Notes
- Designed specifically for JDM Evo IV-VI (1996-2001) with RB26DETT-inspired flow principles
- Silent version provides refined sound suitable for street and spirited driving
- Improves mid-range boost response and high-RPM power with less restriction
Installation Notes
- Bolt-on cat-back replacement
- Estimated time: 2–4 hours
- Professional installation recommended for proper alignment and leak-free fitment
This Part Fits
| Year Range | Make | Model | Trim / Engine | Notes |
|---|---|---|---|---|
| 1996-2001 | Mitsubishi | Lancer Evolution | IV-VI (JDM CN9A/CP9A) | Silent Hi-Power exhaust |
Why Choose HKS Silent Hi-Power Exhaust?
- #1 choice for refined, race-inspired exhaust on JDM Evo platforms
- Built & tested in Japan
- Chosen by Evo owners for quiet performance, durability, and power gains
Frequently Asked Questions
-
Q: Does this fit my Evo VI TME?
A: Yes, direct fit for JDM Evo IV-VI models (CN9A/CP9A). -
Q: How loud is it?
A: Silent version: 82 dB idle, 93 dB close refined and street-friendly. -
Q: Will this add power?
A: Ye, improved flow enhances mid-range boost and high-RPM performance.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Official HKS retail box
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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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