Extreme Dimensions Duraflex VTX Rear Diffuser 02-07 Subaru Impreza WRX STI | Signature Black Finish | Rear Aero Diffuser
Overview
The Extreme Dimensions Duraflex VTX Rear Diffuser is a precision-engineered aerodynamic upgrade designed specifically for the 2002-2007 Subaru Impreza WRX STI 4-door models. This one-piece diffuser enhances the rear underbody airflow, reducing turbulence and drag while adding aggressive styling that complements the WRX STI’s performance-oriented character. Ideal for Subaru enthusiasts looking to improve both the aesthetics and aerodynamic efficiency of their vehicle, this diffuser offers a functional upgrade that blends seamlessly with the Impreza’s factory lines.
Crafted from a proprietary polymer blend combined with hand-laid 6 oz. fiberglass, the Duraflex VTX diffuser balances flexibility with durability. This construction approach allows the diffuser to resist cracking and damage from road debris or minor impacts, extending its service life compared to traditional rigid materials. The signature black finish and integrated weather-resistant aluminum mesh grille (where applicable) provide a high-quality OEM+ appearance that elevates the rear fascia without compromising on resilience.
For Subaru WRX STI owners, this diffuser not only enhances visual appeal but also contributes to improved aerodynamic performance by modifying airflow under the rear of the vehicle. This can lead to better high-speed stability and reduced lift, which are valuable benefits for spirited driving and track use. The reduced damage rate—up to 75% less compared to standard diffusers—means less worry about wear and tear, making it a practical and stylish addition to your Subaru.
Features & Specifications
This Extreme Dimensions Duraflex VTX Rear Diffuser is engineered for 2002-2007 Subaru Impreza WRX STI 4-door models and features a one-piece hand-laid fiberglass construction with a proprietary polymer blend for enhanced flexibility and durability. Constructed from 6 oz. fiberglass and weather-resistant aluminum mesh, it delivers improved aerodynamics and a signature black finish for Subaru enthusiasts seeking a durable, OEM+ quality rear diffuser.
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Brand: Extreme Dimensions
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Product: Duraflex VTX Rear Diffuser
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Part Number: 116613
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Fitment: 2002-2007 Subaru Impreza WRX STI 4DR
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Material: 6 oz. Fiberglass with proprietary polymer blend
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Finish: Signature black
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Construction: Hand laid fiberglass with aluminum mesh grille
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Origin: Not specified
Key Benefits
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Aerodynamics: Enhances rear underbody airflow to reduce drag and improve high-speed stability
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Durability: Proprietary polymer blend increases flexibility and reduces damage rate by up to 75%
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Fitment: Designed specifically for 2002-2007 Impreza WRX STI 4-door for a seamless OEM+ integration
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Quality: Hand-laid fiberglass construction with weather-resistant aluminum mesh ensures long-lasting performance
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Aesthetics: Signature black finish provides a clean, aggressive look that complements Subaru’s styling
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Value: Limited warranty and satisfaction guarantee offer peace of mind with your purchase
What's Included
- 1× Extreme Dimensions Duraflex VTX Rear Diffuser
- Weather-resistant aluminum mesh grille (where applicable)
- Installation instructions
Installation & Compatibility
Installation of the Duraflex VTX Rear Diffuser is generally straightforward for enthusiasts with basic automotive experience, as it is a direct bolt-on upgrade designed to fit the factory mounting points of the 2002-2007 Subaru Impreza WRX STI 4-door models. No special tools beyond standard hand tools are typically required. However, professional installation is recommended if you want to ensure perfect alignment and finish. The diffuser’s flexible construction helps accommodate minor fitment variations without cracking.
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Professional Installation: Recommended for best fit and finish
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific model year and trim level within 2002-2007 Impreza WRX STI 4DR
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