GRUPPEM BANANA WING FOR PORSCHE 911 (999) GT3 HOODED CAR RWBC-996EX

 

GRUPPEM BANANA WING FOR PORSCHE 911 (999) GT3 HOODED CAR RWBC-996EX

Here’s a clear comparison of the GruppeM Banana Wing (Part No. RWBC-996EX) for the Porsche 911 (996) GT3 hooded car versus the OEM / factory wing that comes on that car:

📦 What the GruppeM Banana Wing Is

The GruppeM Banana Wing (RWBC-996EX) is an aftermarket carbon/Kevlar aero wing designed specifically for the 996 GT3. It’s a hand-made part meant for more aggressive aerodynamic performance and a distinct look compared to the stock/rear spoiler. 

🔎 Key Advantages Compared to OEM

🏎️ 1. Increased Downforce & Stability

• The GruppeM wing generates more aerodynamic downforce than the stock spoiler. More downforce means the rear tires are pressed harder onto the road at speed, which improves grip during high-speed cornering and under heavy braking — especially useful on track days or spirited driving.  
• The stock 996 GT3 rear wing/spoiler is designed more for balanced everyday performance, while aftermarket wings like the GruppeM aim for maximum rear traction.

Benefit: Better high-speed stability and confidence in fast sweepers or track circuits.

⚖️ 2. Weight Savings

• The GruppeM Banana Wing is typically made from high-grade carbon fiber and Kevlar, which is lighter than OEM assemblies.  

Benefit: Lower weight improves power-to-weight ratio and helps reduce lift on the rear end without adding significant mass.

🎯 3. Tailored Aerodynamic Tuning

• GruppeM designs their aero parts with airflow management in mind, often based on wind-tunnel and real-world testing geared more toward maximum downforce and efficiency on specific models.  

Benefit: You get an aero element tuned specifically for the 996 GT3 platform rather than a one-size-fits-all or street-focused spoiler.

🎨 4. Distinct Visual/Track Presence

• The GruppeM wing gives a more aggressive, race-inspired look compared to OEM. It’s visually busier and signals performance intent, whereas the OEM spoiler on a 996 GT3 is more OEM-calibrated and restrained.

Benefit: Aesthetically richer, especially for builds that are performance/track-oriented.

🆚 OEM Wing Tradeoffs

While the GruppeM Banana Wing has performance benefits, here’s what you might give up versus stock:

🧠 1. Higher Drag

• More downforce often comes with increased aerodynamic drag at high speeds. That means it can slightly reduce top speed or hurt straight-line acceleration compared to the OEM spoiler, which Porsche balanced for overall performance and comfort.  

🛠️ 2. Installation Considerations

• Aftermarket wings may require modifications or specific fitment efforts, unlike OEM parts which drop in more seamlessly.

🏁 3. Track vs Street Use

• The performance gains from the GruppeM wing are most noticeable at higher speeds or on track. On regular roads or low-speed driving, the difference versus OEM is minimal in everyday handling.

📌 Summary – GruppeM vs OEM

Feature	OEM Wing	GruppeM Banana Wing (RWBC-996EX)
Downforce	Moderate/stock	Higher performance-oriented
Weight	Standard	Lighter (carbon/Kevlar)
High-Speed Stability	Good	Better rear traction and stability
Drag	Optimized for all-around	Slightly higher (for downforce)
Visual Style	OEM-balanced	Aggressive/race-inspired
Best Use	Daily driving + light track	Track and performance enthusiast driving

🧠 Bottom Line

The GruppeM Banana Wing is a performance-focused upgrade over the stock OEM spoiler on a 996 GT3. 

It’s especially beneficial if you track your car or want more downforce and stability at speed with a lighter, more aggressive aero setup. 

However, for regular street use, the OEM wing is still solid, and the extra downforce of the GruppeM will only show its strengths at higher speeds. 

GRUPPEM BANANA WING FOR PORSCHE 911 (999) GT3 HOODED CAR RWBC-996EX

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

Honda B-Series Build Up: A Guide Like No Other

Honda B-Series Build Up: A Guide Like No Other

The Honda B-Series is legendary for one reason: it rewards smart engineering more than brute force. 

Whether you’re building a street car, weekend track weapon, or a reliable turbo setup, success with a B-Series comes from balance, not hype parts.

Start with the foundation. A healthy B16 or B18 block with proper measurements matters more than brand names. 

Blueprinting, correct bearing clearances, and oil control upgrades (baffled pan, windage tray) are non-negotiable if you want longevity above 8,000 rpm. 

Forged pistons and rods are only necessary once you exceed stock limits—don’t overspend early.

Cylinder head work is where B-Series shines. Mild port cleanup, quality valve springs, and matched cam profiles unlock airflow without killing drivability. 

Oversized cams without compression or tuning support will hurt more than help. Always build the head to match the RPM range you actually use.

Fueling and engine management decide whether your build lives or dies. 

Proper injector sizing, stable fuel pressure, and a standalone or chipped ECU with professional tuning are mandatory—even for NA builds. 

Knock control and conservative ignition timing keep the engine alive under abuse.

Transmission and drivetrain are often ignored. An LSD, refreshed synchros, and sensible final drive ratios transform how power reaches the ground. Power is useless if you can’t deploy it.

Finally, cooling and maintenance discipline separate legends from blown motors. Good radiators, oil coolers, and frequent inspections keep a B-Series happy for years.

Build smart, not loud—and the B-Series will reward you every time you hit VTEC.

Honda B-Series Build Up- A Guide Like No Other