SR ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]
Price range: $280.00 through $6,800.00
Description
Highlights:
- GT3R Grade Race Diffuser: The SR Ultra Diffuser is a genuine motorsport design that generates similar rear axle downforce as the Porsche GT3R race car.
- Individually Replaceable Blades: Each Diffuser Blade can be replaced at a very reasonable price to maintain a low on-Track Running cost. Worry free to fully push your GT4RS at limit.
- SilverRocket BlitzSwap Diffuser Blade System: Designed for ultra-fast, effortless blade changes. only 25 seconds to replace a single blade.
- Motorsport Material & Construction: Crafted from aerospace-grade dry carbon fiber, plus each blade incorporates a proprietary hollow-core structure to maximize the weight-to-strength ratio.
- Heat Resistant Coating: The inner surface of the diffuser floor features SilverRocket’s proprietary R-HR Heat-Resistant Coating, ensuring superior longevity under demanding high-temperature conditions.
- Compatible with most aftermarket flat bottom exhaust: Please check compatibility guide doc here.
Application:
– Porsche 718 GT4 RS with SilverRocket Titanium Race Pipe or other applicable exhaust
Additional information
| Configuration | Diffuser Set (Race Version Blades), Diffuser Set (Street Version Blades), Individual Race Blade |
|---|
Reviews
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![SR ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]](https://cantrellmotorsport.com/wp-content/uploads/2026/06/1U8A8637_b5dc3587-c894-4949-aaa8-6fb9720a9e72.jpg)
![SR ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]](https://cantrellmotorsport.com/wp-content/uploads/2026/06/2260b14dd161c60869f7455a9d3e2a18.jpg)
![SR ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]](https://cantrellmotorsport.com/wp-content/uploads/2026/06/6a96abd98f63782ec5cb0c631353572d.jpg)
![SR ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]](https://cantrellmotorsport.com/wp-content/uploads/2026/06/11_0001_1U8A8875_a464f155-3bfa-49f0-90d6-c5c8a859ea88.jpg)
![SR ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]](https://cantrellmotorsport.com/wp-content/uploads/2026/06/11_0005_1U8A8866_c22e2891-77c8-46ac-8eaa-4327dae2346f.jpg)

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