HKS HI-POWER SPEC L II MUFFLER EXHAUST SYSTEM – GR86/BRZ ZD8 Gen1
Original price was: ¥235,000.¥225,000Current price is: ¥225,000.
Product Code:32016-AF101

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Description
The HKS Hi-Power SPEC-L II is a premium dual-exit performance exhaust system engineered for the Toyota GR86 and Subaru BRZ (FA24 engine). It masterfully blends an exhilarating sporty sound with a significant 4.8kg weight reduction (vs. stock), utilizing ultra-thin stainless steel construction to achieve weight savings rivaling titanium. Featuring an equal-length dual-pipe design for a clear, balanced exhaust note and optimized pipe diameters for the high-output 2.4L engine, this system enhances exhaust efficiency, throttle response, and overall driving performance while delivering the signature HKS auditory experience.

Product Highlights
🎵Â Signature HKS Sound with Precision Tuning
Engineered for an exhilarating yet refined acoustic character. The design emphasizes a deep, bass-focused tone while a specialized internal silencer chamber effectively reduces unwanted cabin drone. The perfectly equal-length left and right piping ensures a clear, crisp, and balanced exhaust note that embodies the sporty character of the FA24 engine.
⚖️Â Significant Weight Reduction with Ultra-Thin Stainless
Utilizes advanced ultra-thin stainless steel for the pipes and silencer, achieving a total system weight of just 11.4kg—a substantial 4.8kg (30%) reduction from the stock 16.2kg unit. This delivers weight savings comparable to titanium, contributing to improved agility and reduced unsprung mass.
⚡Â Optimized Pipe Diameter for the FA24 2.4L Engine
The pipe diameter (65mm → branching to dual 50.8mm) was carefully selected to match the airflow requirements of the high-output 2.4L naturally aspirated engine. This optimization prioritizes excellent exhaust efficiency and reduced backpressure, resulting in sharper throttle response and a noticeable improvement in driving performance.
🏁Â Official CUP Series Designated Part (Dual Exit Variant)
Certified as a designated part for the TOYOTA GAZOO Racing GR86/BRZ CUP (PROFESSIONAL Series), meeting strict competition regulations for performance, sound, and durability. This confirms its track-ready pedigree and engineering integrity.
🔧Â Dual Exit Design with Applied AE Type Compatibility
Features a symmetrical left and right exhaust layout (Φ94mm tailpipes) for a balanced, aggressive appearance. Compatible with Applied AE type vehicles, ensuring broad fitment across model variations.

Technical Specifications
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Product Name:Â Hi-Power SPEC-L II
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Model Code:Â 32016-AF101
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Compatibility:Â Toyota GR86 / Subaru BRZ (ZN8/ZD8, FA24 engine)
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Material: Stainless Steel (S304) – Ultra-Thin Construction
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Weight:Â 11.4 kg (vs. OEM 16.2 kg)
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Pipe Diameter:Â 65mm intermediate, branching to dual 50.8mm
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Tailpipe Diameter: Φ94 mm (Left & Right)
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Exhaust Layout:Â Dual exit
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Ground Clearance (Installed):Â 120 mm
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Certification:Â JQR40214118, TRA230322-154
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Sound Level (HKS Measured):Â 87 dB (Left) / 88 dB (Right)
Performance & Design Benefits
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Enhanced Driving Performance:Â Reduced weight and optimized flow contribute to improved acceleration, throttle response, and overall vehicle agility.
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Exhilarating Audible Experience:Â Enjoy the signature HKS sporty sound with minimized in-car drone, perfect for spirited street and track use.
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Track-Ready Certification:Â Officially recognized for competitive use in the GR86/BRZ CUP, underscoring its performance and reliability under extreme conditions.
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OEM+ Fitment & Finish:Â Designed for direct bolt-on installation with a high-quality finish that complements the vehicle’s rear aesthetics.
| Vehicle | G86 |
|---|---|
| Model | ZN8 |
| Engine | FA24 |
| Model Year | 2021/10~ |
| Shape of muffler | HP (Hi-Power SPEC-L II) | |
|---|---|---|
| Main material | S304 | |
| Diameter of tip | 94 L&R | |
| The diameter of the center pipe | 65 – 50.8 x 2 (*1) | |
| Close noise level | Stock | 82 L&R |
| HKS | 87/88 | |
| About road clearance(*2) | Clearance | 120mm |
| The portion of the kit | Second intermediate pipe | |
| Remarks | ||
| Product Weight | 11.4kg | |
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Installation & Remarks
🔧Â Professional Installation Recommended
For optimal alignment, seal, and safety, installation by a qualified exhaust specialist is recommended to ensure proper fitment and bracket tension.
⚠️Â Ground Clearance Consideration
The installed system provides 120mm of ground clearance. Owners with significantly lowered suspensions should verify compatibility to avoid contact.
✅Â CUP Competitors Note
This dual-exit variant is a designated part for the 2025 season GR86/BRZ CUP. Competitors should confirm current series regulations.
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