Silver Rocket SR Ultra Downforce Dry Carbon Fiber Rear Diffuser - 2022+ Porsche 718 Cayman GT4RS
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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
GT3-R RACE CAR GRADE DIFFUSER
The SR Ultra Downforce Diffuser is a true motorsport-grade rear diffuser engineered to deliver rear-axle downforce on par with Porsche GT3R race car - while producing the maximum possible downforce(~105KG Downforce at 200KM/H in CFD simulation) from the underbody floor at the lowest achievable drag.
Pure race-bred performance. Exceptional efficiency. Uncompromising grip.
FLOOR SAFE BLADE WITH HOLLOW-CORE STRUCTURE
The Floor-Safe Blades are designed to ensure gentle interaction with the diffuser floor during accidental contact, preventing damage and preserving floor integrity, while the Ultra-lightweight Hollow-Core construction is precisely engineered to achieve the ideal balance of controlled flexibility and durability.
SILVERROCKET BLITZ-SWAP DIFFUSER BLADE SYSTEM
Designed for ultra-fast, effortless blade changes. Swap between Street and Race versions or remove all blades instantly for safe transport.
Result: Replace a single blade in just 25 seconds.
TRACK TESTED & VERIFIED
As with all SR products, the SR Ultra Downforce Diffuser has been fully track-tested and rigorously verified under real-world circuit conditions prior to being released to customers.
Aero Performance: During our track testing, we successfully maintained equivalent rear axle downforce while reducing the DRS-1 rear wing angle of attack (AoA) from 7° to 5°
Blade Durability: After ~80 laps with aggressively cutting high curbs, no blades were damaged, only minor surface scratches were noted.
STREET VERSION SHORTER BLADES AVAILABLE
To ensure the SR Ultra Downforce Diffuser is fully suitable for daily driving, we have developed a dedicated street version featuring shorter blades. These street blades incorporate the advanced SR BlitzSwap Blade System, enabling effortless and rapid interchangeability between the race and street blade sets.
This dual-configuration approach allows owners to optimize aerodynamic performance for track use while maintaining practicality, ground clearance, and compliance for everyday road conditions.
COMPATIBLE WITH MOST AFTERMARKET FLAT BOTTOM RACEPIPE SYSTEM
To achieve superior performance compared to the original factory diffuser, a superior diffuser must incorporate significantly larger diffusion volume. However, the two large mufflers of the factory exhaust system completely obstruct any possibility of achieving greater diffusion volume. For this reason, the SR ULTRA Downforce Diffuser was specifically developed and designed exclusively for vehicles whose original factory exhausts has been replaced with an aftermarket system that removes the two large mufflers.
All development and testing of the SR Ultra Downforce Diffuser were conducted using the SR 3200G one-piece titanium Racepipe. Therefore, the SR 3200G Racepipe is 100% compatible with the SR Ultra Downforce Diffuser.
That said, the SR Ultra Downforce Diffuser may also be compatible with other aftermarket exhaust systems that have eliminated the original mufflers. To assist customers in determining compatibility, we have prepared a dedicated measurement guide/manual (Download Here) , enabling owners to verify whether their specific aftermarket exhaust system is compatible with the SR Ultra Downforce Diffuser.
THE WIDEST SELECTION OF PERFORMANCE UPGRADES FOR THE 718 GT4 RS
SilverRocket stands as the sole specialist brand that has dedicated five years exclusively to the 718 GT4 RS platform. Through continuous development and in-depth exploration, we have unlocked the vehicle's full performance potential. Each year, we concentrate on targeted areas of enhancement—delivering measurable gains of up to 2 seconds in lap time through carefully engineered solutions.
FAQ
At T1 Motorsports, Not only do we specialize in aftermarket parts, but we also specialize in all mechanical repairs. We are a full-service mechanical shop, with skilled technicians geared towards OEM and Aftermarket enthusiasts.
How Long Will It Take to Receive My Order?
Shipping times depend on your location and our inventory levels.
- In-Stock at T1 Motorsports Orders: Orders for in-stock items will be shipped out on the same business day.
- Out-of-Stock & Distant Warehouse Orders: If an item is not in stock or is located in a warehouse, it will take 2-3 weeks to arrive at our facility before being shipped using the method selected at checkout.
- Order Tracking & Confirmation: Delivery details, including tracking information, will be provided in your confirmation email once the order has shipped.
For any shipping-related questions, please contact T1 Motorsports customer support.
My Order Is Taking Longer Than Expected. What Can I Do?
At T1 Motorsports, we strive to ensure every customer is satisfied with their experience.
- Before your order is confirmed, you will receive an email with the estimated arrival time (ETA) for your shipment.
- While we do our best to meet all delivery expectations, unexpected delays may occur. Rest assured, our team is always here to help and resolve any issues.
- If you have any concerns regarding your order, please contact us directly, and we’ll work to find the best solution for you.
What Is Your Order & Shipping Policy?
It is your responsibility to provide accurate shipping information at checkout. T1 Motorsports is not liable for any delays, lost shipments, or additional costs resulting from incorrect or incomplete addresses submitted during ordering.
What Is Your Return & Exchange Policy?
All processed orders that have not shipped will incur a 6% processing fee, this is mainly to cover any payment processing and cancelation fee with the manufacturer or warehouse. A processed order is an order that has already been put in our system and the product has been taken out of inventory and moving towards the packing and shipping face.
On special order or custom-made orders, the processing face is indicated when the manufacturer has received our order. Please be courteous and notify us ASAP if you wish to cancel any order(s) that were recently placed in order to prevent it from shipping out.
Due to the nature of racing and performance vehicles, no returns will be accepted on special order items, opened, installed, incomplete, or otherwise used products. If a product is ordered and not wanted, the UNUSED item can be returned within 30 days after the product has been delivered. This does not apply to SPECIAL ORDER items. Once the product is returned, you have two options for your refund:
You may have your purchase refunded back on your original payment method minus a 20% restocking fee of the total amount. In this case, please know that the initial shipping is not refundable (free shipping items still incur shipping chargers which MUST be deducted on a return). All items wanting to be returned MUST be reported within 30 days of delivery date. If you are still browsing and want an alternate product, we can provide you with a full credit minus shipping costs as a T1 Motorsports store credit. Some brands are excluded and may incur up to a 10% restocking fee. Please contact us to confirm.
On both refund options, a return shipping label may be provided if you are unable to ship the product(s) back using your own method of shipping. This shipping cost will be deducted from your total refund or credit.
What Should I Do If My Ordered Product Doesn't Fit?
We strive on making our fitment guide perfect. If you have any fitment issues regarding your product, please contact us by email or phone and we will solve your issue.
What is Your Order Pickup Policy?
- Once you receive an email confirming that your order is ready for pickup, you may collect it at our store during regular business hours.
- If you wish to designate someone else to pick up your order, please notify us via email with their full name. They will need to provide a valid ID at the time of pickup.
- To expedite the process, please bring your order number when arriving at the store.
- You have 60 days from the date your order status is updated to "Ready for Pickup" to collect your order, unless a different pickup date has been agreed upon.
Orders not picked up within the 60-day window will be deemed abandoned and canceled. No refunds will be issued for abandoned orders.
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AeroWolf
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