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Description

Moshammer Rear Diffuser GT Evo for 992.2 Porsche 911 Carrera GTS

Moshammer Rear Diffuser GT Evo answers a question the 992.2 Carrera GTS leaves open: how do you sharpen the rear without shouting about it. Moshammer developed this piece in Berlin for GTS models specifically, working within the OEM+ discipline the house has followed since it began refining 911s. The signature split-fin geometry pulls the eye outward so the rear reads visibly wider, while the profile itself improves aerodynamic function under the tail rather than merely dressing it. It arrives primed in satin black, locating on the factory screw points and bonded with a purpose-made adhesive, so nothing about the fitting is improvised. Production runs are small, which keeps the car that wears it a clear step removed from every other GTS in the paddock.

Split-Fin Geometry

The split fins are the reason this diffuser looks like a factory GT decision rather than an accessory. By breaking the lower surface into defined vertical elements, Moshammer draws the eye toward the outer corners and the rear reads wider than it does standard. The original bodylines are left entirely alone, which is what separates OEM+ work from a body kit.

Berlin Engineering

Moshammer developed the GT Evo exclusively for 992.2 GTS bodywork, so the mating surfaces follow the car rather than approximating it. Beyond appearance, the shaped underside improves aerodynamic function at the point where air leaves the underbody. Each piece is made to order in Berlin in small batches, which is why the fit tolerances hold and why the part never becomes commonplace.

Finish and Mounting

The diffuser is delivered primed in satin black and is ready to mount as it comes, a finish plenty of owners run permanently. If you want it to vanish into the bodywork, a painter can match your colour code before installation. Mounting uses the original screw points, reinforced with a special adhesive, so the factory bumper is never cut.

Features

Delivered primed in satin black, ready to mount
Engineered and produced in Berlin
GT presence without a motorsport bodykit appearance
Improved aerodynamic function where air exits the underbody
Locates on the original screw points
Model-specific development rather than a universal add-on
OEM+ proportions that leave the factory bodylines undisturbed
Secured with a purpose-made adhesive
Signature split-fin design that widens the visual stance
Single moulded component, no bumper cutting

Applications

Porsche 911 Carrera GTS: 992.2 | 2025-present
Porsche 911 Carrera 4 GTS: 992.2 | 2025-present

Notes

Moshammer parts ship directly from Germany. Import taxes, duties, and tariffs may apply upon delivery and are the responsibility of the buyer. These fees are neither collected nor paid by Bulletproof Automotive.
Made to order in small batches in Berlin. Allow production time before shipping, contact us for the current schedule.
Satin black is a primed, ready-to-mount finish. Have it sprayed to your colour code first if you want a fully body-matched rear.
Fitting combines the factory screw points with adhesive, so professional installation is recommended

Frequently Asked Questions

Does it come painted? It ships primed in satin black and can be mounted exactly as delivered. Owners who want the diffuser to read as body colour have it sprayed by a paint shop before fitting.
Is the bumper modified during installation? No. The diffuser locates on the original screw points and is secured with a special adhesive, so the factory bumper is left intact and the part can be removed later.
Will it fit a 992.2 Carrera or Carrera S? No. This version was developed exclusively for 992.2 GTS models, whose rear valance geometry differs from the other Carrera variants.
Does it do anything aerodynamically or is it styling? Both. Moshammer shaped the profile to improve aerodynamic function at the rear while the split fins sharpen the visual width, which is the basis of the OEM+ approach.
Where is the part made? In Berlin. Moshammer engineers and produces its aerodynamic components in house and builds them to order rather than holding warehouse stock.

About Moshammer

Moshammer Automotive is a Berlin-based manufacturer of OEM+ aerodynamic refinement for Porsche, with a smaller line for Mini, Audi, BMW, and Mercedes-Benz. The house style is restraint with intent: parts drawn to look as though the factory had gone one step further, developed against original mounting points, TUV-documented where German road use demands it, and produced in small batches rather than stocked in volume. Their catalog spans single accents such as vent grills and wing end blades through complete Downforce and Tradition RS aero programs, alongside a range of multipiece forged wheels made to order in any size, width, and finish.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Moshammer Rear Diffuser GT Evo for 992.2 Porsche 911 Carrera GTS

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Moshammer Rear Diffuser GT Evo for 992.2 Porsche 911 Carrera GTS

Split-Fin Geometry

Berlin Engineering

Finish and Mounting

Features

Applications

Notes

Frequently Asked Questions

About Moshammer

Reviews