5ZIGEN ASHIKU EXHAUST FOR TOYOTA GR86 BRZ 3BA-ZN8 3BA-ZD8 AS-T-014CBT

 

5ZIGEN ASHIKU EXHAUST FOR TOYOTA GR86 BRZ 3BA-ZN8 3BA-ZD8 AS-T-014CBT

Here’s a breakdown of how the 5ZIGEN ASHIKU Exhaust for Toyota GR86/BRZ compares to the stock (OEM) exhaust on your Toyota GR86 / Subaru BRZ (3BA-ZN8 / 3BA-ZD8) — focusing on the advantages you’d actually experience as an enthusiast:

🔥 Key Advantages Over OEM

✅ Sportier Sound & Style

• The ASHIKU exhaust is designed to give the car a more engaging and performance-oriented exhaust note compared to the fairly quiet stock system. Aftermarket catback-style exhausts like this typically:
  
• Let the boxer engine express more character on throttle and at higher RPM.
• Produce a deeper, more noticeable growl rather than the muted OEM tone.  
• It also features carbon-wrapped, double-wall tail ends for a more aggressive visual finish vs OEM’s plain tips.  

✅ Aesthetic Upgrade

• The ASHIKU has premium carbon accents and a custom tip shape that stand out more than the OEM look — giving a sportier rear appearance.  

✅ Better Flow Than OEM

• While this isn’t a full high-flow header system, the ASHIKU’s shape and piping often have less restriction than stock mufflers, which can help exhaust gases flow more freely. That can yield:
  
• Slightly better throttle response feel.
• A more free-breathing sound character.  

✅ Street-Legal and Simple Fitment

• It’s designed as a direct bolt-on fit for the 3BA GR86/BRZ — no major cutting/modifications needed and keeps legal compliance in markets where CARB/JQR homologation matters.  
• Unlike removing cat converters or doing a full headers swap, this keeps the factory catalytic converter in place (so the ECU doesn’t throw error codes).

🧠 What It Doesn’t Do (Compared to OEM)

⚠️ Modest Performance Gains

• Because it’s mostly a rear exhaust catback-style unit, you’ll get only small real power increases — typically noticeable more in sound and throttle feel rather than big horsepower jumps. Most aftermarket catbacks might show ~5-10 HP with no other changes.  

⚠️ Weight Reduction Isn’t Huge

• OEM systems aren’t extremely heavy to begin with, and the ASHIKU doesn’t massively reduce weight like a titanium system would. 🔍 Lightweight aftermarket systems (especially titanium) make more difference in handling feel.  

🆚 OEM vs. ASHIKU — Quick Comparison

Feature	OEM Exhaust	5ZIGEN ASHIKU Exhaust
Sound	Quiet / refined	Sportier and more engaging
Aesthetics	Stock tips	Carbon look, styled tips
Power	Baseline	Slight improvement
Weight	Standard	Similar to OEM (not lightweight like full titanium)
Fitment	Perfect OEM fit	Plug-and-play after- market

📌 Who This Is Good For

✔ You want a sportier exhaust sound without being too loud for daily driving

✔ You want improved style at the rear compared to stock

✔ You want a simple bolt-on upgrade that keeps emissions compliance

5ZIGEN ASHIKU EXHAUST FOR TOYOTA GR86 BRZ 3BA-ZN8 3BA-ZD8 AS-T-014CBT