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SilverRocket ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]

SilverRocket ULTRA DOWNFORCE DRY CARBON FIBER REAR DIFFUSER [PORSCHE 718 GT4 RS]

Prezzo di listino €6.415,09 EUR (Shipping & Tariff Included) New
Prezzo scontato €6.415,09 EUR Prezzo di listino
New
Option

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:  Checking guide provided. Download Here
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GT3R RACE CAR GRADE DIFFUSER

The SR Ultra 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.

FLOORSAFE BLADE WITH HOLLOW-CORE STRUCTURE

FloorSafe Blade, designed to ensure gentle interaction with the diffuser floor during accidental contact, preventing damage and preserving floor integrity.
The Ultra-lightweight Hollow-Core construction, precisely engineered to achieve the ideal balance of controlled flexibility and Durability.

BLITZSWAP 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, every SR Ultra 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;

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STREET VERSION SHORTER BLADES

To ensure the SR Ultra 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.

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COMPATIBLE TO 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 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 Diffuser were conducted using the SR 3200G one-piece titanium Racepipe. Therefore, the SR 3200G Racepipe is 100% compatible with the SR ULTRA Diffuser.

That said, the SR ULTRA 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 Diffuser.

CUSTOMER SHOWCASE

All SilverRocket's Porsche Performance products are built and refined based on Rennlist members' feedback, we'd like to hear from your honest thoughts & suggestions about your experience with our products.


Rennlist Members Reviews on SilverRocket's Porsche Performance Products
from Rennlist Member - yimn

Recently took delivery of my GT4RS and installed the carbon rollcage by silver rocket. With the Weissach package, a carbon roll cage matches perfectly all the carbon bits in the package especially the carbon air intake. The result turns out above my expectation and it makes the whole car look so much better even compared to the factory cage even the one in titanium.
Have done a number of modifications on different cars and dealt with many after market carbon parts, the quality of the cage is definitely top notched and the fit and finish is perfect, making installation a breeze. Last but not least it actually comes with a 50-page installation manual, going through the installation step by step. Never seen that before even from top tuner like Novetic.
Highly recommend the product!!!

from Rennlist Member - sleepin'gt

This is very cool, I appreciate all the time + effort you guys spent developing this, it certainly shows in the product as it’s one of the most well thought out designs I’ve seen in aftermarket parts.

from Rennlist Member - Schnell 911

Very easy substitution. Visibility is even more enhanced by installing a Goodyear Wide Angle 17IN rear VIEW MIRROR that clips on perfectly over the factory mirror. 2 Thumbs Up!!!

from Rennlist Member - PBRME

+3" Risers are installed on the stock CS wing. Noting:

  • Risers appear to be well designed and manufactured. Do not expect any stability or strength issues.
  • Install - use the stock / oem mounting brackets, not those included with the kit as those are intended for the SilverRocket wing.
  • Was successful in maintaining the same wing angle (2.1 deg.).
  • Visibility through the stock rear view mirror is much improved and now only limited by the roll cage and roll bar padding.
  • Possibility of increase of rear downforce is not yet known. I have an event later this month at Road America (first time), which should show if there is enough of an increase to result in a potential downforce unbalance between the front and rear. Will also compare at known tracks later this year (Road Atlanta, Sebring, etc.) to better know if any other impacts (top speed, etc.)

Overall, am pleased with the product and installation results at this point.

from Rennlist Member - Q&A

Buy with confidence from Kimbeli. True Professional.
I recently bought 2 x GT4 RS Clubsport and both ran with extended uprights in their series.
Mainly for better rear vision, with the extra benefit of more downforce.

Check discussion thread on Rennlist and leave your suggestions here