What is the difference between this kit and the Downforce RS version?

This package includes the revised rear diffuser and leaves out the ram air intercooler scoops. The Downforce RS version does the opposite, adding two scoops at the intercooler inlets in place of the diffuser.

What does the rear diffuser actually change?

Moshammer designed it to reduce drag and increase downforce, and the practical result is better stability and traction at high speed and on track. It also gives the rear valance a more technical appearance than the standard panel.

Does the front spoiler help with brake temperatures?

Yes. The larger air intakes were drawn specifically to improve brake cooling while also improving the aerodynamics of the front end.

Is the kit painted to my color before shipping?

No. It arrives unpainted with the mounting material, which is the normal arrangement for a made to order German aero kit and lets you match the car exactly.

What paperwork comes with the kit?

A TUV parts certificate (§19.3) is included, recording the parts as tested and approved for road use.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

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Description

Moshammer Downforce Aero Kit for 997 Porsche 911 Turbo & Turbo S

Moshammer Downforce Aero Kit is the configuration for the 997 Turbo owner whose priority is the car’s underside rather than its shoulders. Where the scoop equipped version chases intercooler temperature, this set pairs the front spoiler and side skirts with a rear wing spoiler and a revised rear diffuser that reduces drag while increasing downforce, so stability and traction improve together at speed. The front spoiler brings a more aggressive shape with larger air intakes for brake cooling, the skirts clean up airflow along the flanks and visually lower the car, and the wing spoiler loads the rear axle where a rear engined 911 asks for help. Moshammer draws and builds the panels in Berlin, delivers them unpainted with the mounting material, and includes a TUV parts certificate (§19.3) so the modification is documented rather than improvised. For a 997 Turbo being prepared for serious road use, it is a coherent piece of engineering rather than a collection of parts.

Drag and Downforce

The revised rear diffuser is the reason this version exists. By managing airflow leaving the underbody it reduces drag and increases downforce, which shows up as steadier traction during high speed driving and on track, and the rear wing spoiler works with it to add load over the rear axle through fast corners. The two rear elements are complementary rather than redundant, and the car’s behavior at speed changes more than its silhouette does.

Front End and Flanks

At the nose the front spoiler adopts a more aggressive design with larger air intakes, feeding the brakes more air while improving aerodynamics and, with them, high speed stability. Along the sides the skirts improve overall airflow and give the 997 a lower, sportier line that flatters the car’s proportions. Neither piece looks out of place on a Turbo that was already the most purposeful shape in the 997 range.

Construction and Finish

Every panel is produced in Berlin in small batches and shipped unpainted with the mounting material included, which lets your painter match the car’s color code exactly. Fitment relies on the OEM screwing points, with a special glue used where the design requires it, so the shell is not altered to accept the kit. A TUV parts certificate (§19.3) is supplied, the German documentation that separates approved components from generic bodywork.

Features

Arrives unpainted with the required mounting material
Four element package with a rear diffuser rather than intercooler scoops
Front spoiler with a more aggressive design and larger air intakes
Improved stability and traction during high speed and track driving
Installs at OEM screwing points with special glue where required
Issued with a TUV parts certificate (§19.3)
Larger front intakes improve brake cooling as well as aerodynamics
Rear wing spoiler increases downforce at the rear of the car
Revised rear diffuser reduces drag and increases downforce
Side skirts improve overall aerodynamics and give a lower, sportier line

What’s Included

Front spoiler Evo with larger air intakes (x1)
Mounting material (x1 set)
Rear wing spoiler (x1)
Revised rear diffuser (x1)
Side skirts, left and right (x2)

Applications

Porsche 911 Turbo: 997.1, 997.2 | 2005-2012
Porsche 911 Turbo S: 997.1, 997.2 | 2005-2012

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
This configuration includes the rear diffuser and does not include the ram air intercooler scoops, which belong to the other 997 Turbo package
Panels are delivered unpainted, so allow for preparation, paint and fitting by a shop experienced with Porsche bodywork
Moshammer specifies the kit for 997 Turbo models with the standard bumpers. contact us with your VIN and we will confirm the fit before your order is placed.
Produced to order in Berlin, generally 6 to 8 weeks before it ships

Frequently Asked Questions

What is the difference between this kit and the Downforce RS version? This package includes the revised rear diffuser and leaves out the ram air intercooler scoops. The Downforce RS version does the opposite, adding two scoops at the intercooler inlets in place of the diffuser.
What does the rear diffuser actually change? Moshammer designed it to reduce drag and increase downforce, and the practical result is better stability and traction at high speed and on track. It also gives the rear valance a more technical appearance than the standard panel.
Does the front spoiler help with brake temperatures? Yes. The larger air intakes were drawn specifically to improve brake cooling while also improving the aerodynamics of the front end.
Is the kit painted to my color before shipping? No. It arrives unpainted with the mounting material, which is the normal arrangement for a made to order German aero kit and lets you match the car exactly.
What paperwork comes with the kit? A TUV parts certificate (§19.3) is included, recording the parts as tested and approved for road use.

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 Downforce Aero Kit for 997 Porsche 911 Turbo & Turbo S

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Moshammer Downforce Aero Kit for 997 Porsche 911 Turbo & Turbo S

Drag and Downforce

Front End and Flanks

Construction and Finish

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About Moshammer

Reviews