How do I tell which rear bumper my car has?

Sport Design cars carry the deeper, more sculpted lower valance of that package. If you are not certain, send us your VIN and we will confirm the correct version before the order goes to Berlin.

Does the diffuser do real aerodynamic work?

Yes. The Moshammer Turbo Rear Diffuser releases hot air from the engine compartment and, together with the flat 992 Turbo underbody, creates a negative ground effect that stabilizes handling at speed.

Is it approved for road use in Germany?

The Moshammer Turbo Rear Diffuser is supplied with a TUV parts certificate (§19.3), which is the documentation German registration authorities look for on an aerodynamic component of this type.

Will it fit a cabriolet?

Yes. Coupe and cabriolet 992 Turbo and Turbo S models are both covered, provided you order the version that matches the rear bumper on your car.

Do I need to modify the bumper?

No cutting is required. The Moshammer Turbo Rear Diffuser locates on the original screw points and is bonded with a special adhesive that Moshammer specifies for the job.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

Moshammer Turbo Rear Diffuser for 992.1 Porsche 911 Turbo & Turbo S

Moshammer Turbo Rear Diffuser treats the 992 Turbo’s flat underbody as an opportunity rather than a finished job. Working from Berlin, Moshammer shaped the trailing edge so hot air leaves the engine compartment cleanly and the air passing beneath the car exits with intent, producing the negative ground effect engineers describe as an inverted wing profile. The consequence is a car that feels more settled the harder it is driven, which is not something you can say of most rear styling parts. Visually it stays inside the OEM+ line, reading as equipment Porsche might have specified rather than an aftermarket statement, and it carries a TUV parts certificate (§19.3). The Moshammer Turbo Rear Diffuser is delivered primed in satin black with mounting material, in versions for the Standard and the Sport Design rear bumper, so the fit is specific to your car.

Moshammer Turbo Rear Diffuser Inverted Wing Profile

The Moshammer Turbo Rear Diffuser vents hot air out of the engine compartment and, working with the smooth 992 Turbo floor, accelerates the air leaving the underbody. That combination generates a negative ground effect, the inverted wing profile that presses the rear of the car down as speed rises. Moshammer’s own claim is stability, and that is the honest description: the car simply gives you more confidence at the top of third gear.

Bumper Variants

Porsche fitted the 992 Turbo with two distinct rear bumpers, and Moshammer builds a diffuser for each rather than compromising with one shape. Choose the Standard or Sport Design Moshammer Turbo Rear Diffuser to suit your car and the panel gaps close the way they should. Both coupe and cabriolet bodies are covered within the correct bumper choice.

Approval and Finish

The Moshammer Turbo Rear Diffuser is supplied with a TUV parts certificate (§19.3), the documentation German authorities expect and useful reassurance anywhere else. It arrives primed in satin black with the mounting material in the box, ready either to fit as delivered or to be painted first. Installation of the Moshammer Turbo Rear Diffuser works to the OEM screw points with a special adhesive, so the bumper is not cut or drilled.

Features

Built in versions for Standard and Sport Design rear bumpers
Delivered primed in satin black
Inverted wing profile that steadies the car at speed
Made to order in Berlin
Mounting material included in the delivery
Mounts to the OEM screw points with special adhesive
OEM+ design element rather than aftermarket styling
Supplied with TUV parts certificate (§19.3)
Vents hot air out of the engine compartment
Works with the smooth 992 Turbo underbody to create a negative ground effect

Applications

Porsche 911 Turbo: 992.1 | 2020-present
Porsche 911 Turbo S: 992.1 | 2020-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.
Moshammer products are not eligible for return
Select the version that matches your car’s rear bumper, Standard or Sport Design. The two are not interchangeable, so confirm before ordering.
Delivered primed in satin black. Paint to your color code before fitting if you want a body-matched finish.
Built to order in small batches, so allow production time, contact us for the current lead time
Fitting uses the original screw points plus a special adhesive and is best left to a professional installer

Frequently Asked Questions

How do I tell which rear bumper my car has? Sport Design cars carry the deeper, more sculpted lower valance of that package. If you are not certain, send us your VIN and we will confirm the correct version before the order goes to Berlin.
Does the diffuser do real aerodynamic work? Yes. The Moshammer Turbo Rear Diffuser releases hot air from the engine compartment and, together with the flat 992 Turbo underbody, creates a negative ground effect that stabilizes handling at speed.
Is it approved for road use in Germany? The Moshammer Turbo Rear Diffuser is supplied with a TUV parts certificate (§19.3), which is the documentation German registration authorities look for on an aerodynamic component of this type.
Will it fit a cabriolet? Yes. Coupe and cabriolet 992 Turbo and Turbo S models are both covered, provided you order the version that matches the rear bumper on your car.
Do I need to modify the bumper? No cutting is required. The Moshammer Turbo Rear Diffuser locates on the original screw points and is bonded with a special adhesive that Moshammer specifies for the job.

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 Turbo Rear Diffuser for 992.1 Porsche 911 Turbo & Turbo S [P992.20.3040/P992.20.3042]

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Moshammer Turbo Rear Diffuser for 992.1 Porsche 911 Turbo & Turbo S

Moshammer Turbo Rear Diffuser Inverted Wing Profile

Bumper Variants

Approval and Finish

Features

Applications

Notes

Frequently Asked Questions

About Moshammer

Reviews