APR GTC-300 SPOILER - HONDA TYPE R 2017 - UP SKU: AS-106191

Here are some of the best advantages of the APR GTC-300 Adjustable Wing / Spoiler (SKU: AS-106191) for the Honda Civic Type R (2017-2021 / FK8), putting together what’s documented by APR and user reports. 

Key Advantages of APR GTC-300 on Civic Type R

1. Improved Downforce & Stability
   
• The wing is designed with a 3D airfoil shape to generate significant downforce over its span while trying to minimize drag.  
• Users report noticeable rear grip improvements at higher speeds (e.g. 70-100 mph+) especially in corners. The extra downforce helps reduce rear lift / instability.  
2. Tunable/Ajustable Design
   
• Angle-of-attack (AOA) can be adjusted via pre-drilled angle adjustment holes, allowing you to tune the balance of downforce vs drag depending on whether you’re driving on street, track, or mixed use.  
• It includes interchangeable side/end plates which help manage airflow at the wingtips, improving consistency of airflow across the wing and reducing turbulent losses.  
3. High Quality Materials & Construction
   
• The airfoil is made from pre-preg carbon fiber (3K weave), which is very lightweight but strong. Pre-preg + vacuum bagging + autoclave processes mean high material integrity.  
• The mounting hardware uses 10mm 6061 aircraft-grade billet aluminum pedestals (pedestals = stands) that are robust, which is important given the loads at speed.  
4. OEM Integration
   
• The GTC-300 for FK8 uses the factory spoiler mounting holes. That means no new holes or significant body modifications are required, making installation cleaner and likely preserving resell value / sealing etc.  
• Also available in different spans (61” or 67”) so you can choose depending on look preference, space, or how aggressive you want the wing to be.  
5. Verified Aerodynamics (CFD Backed)
   
• APR provides Computational Fluid Dynamics (CFD) analysis, to validate the aerodynamic behavior (how downforce vs drag changes, flow separation, etc.). This gives more confidence that the wing performs rather than being just show.  
6. Aesthetic / Visual Presence
   
• It gives an aggressive, race-inspired look. Carbon fiber plus the large span and height (13″ in many configs) make the car stand out, which many owners want.  
• Because it’s aftermarket and premium (carbon + billet aluminum), it tends to carry a “premium/performance” image. For many enthusiasts, part of the value is how it looks.

Potential Trade-Offs to Consider

While advantages are strong, just to be balanced, here are possible downsides so you can decide if it’s worth it:

• Increased drag, especially at higher AOA settings, which may reduce top speed or fuel efficiency.
• More sensitive to crosswinds or turbulence.
• Possibly increased noise from airflow (wind noise).
• More expensive piece – both for purchase and possibly for paint protection, installation, etc.
• The large wing span / height may affect clearance (garage doors, car covers) or parking etc.

APR GTC-300 SPOILER - HONDA TYPE R 2017 - UP SKU: AS-106191