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Fabspeed Porsche 964 Carrera Cup billet aluminum High Performance Airbox coverlid (1989-1994)

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An historically accurate REPLICA - COPY of the Porsche Motorsport Germany 911 Carrera CUP Racing airbox coverlid used in the European 964 Carrera CUP races at FORMULA 1 events.

Direct bolt-on replacement for the factory 964 air box COVER-LID  providing increased airflow and significant immediate power improvement. CAD Designed DYNO developed and CNC machined inhouse on our HASS VF2 vertical mill T6061 Aluminum and anodized gold. The gold color matches the yellow zinc plated OEM hardware that Porsche used in all their air-cooled cars from this era. A SEXY proven tastefully upgrade- that adds to gutsy throaty 3.6 liter flat-6 aircooled sportscar sound and significant power gain. 

The design of this airbox cover was inspired by factory Porsche Cup Cars. Porsche AG simply CUT AWAY the stock plastic airbox so it was simply a picture FRAME holding the stock paper filter in place . Porsche Motorsport quoted over a +9hp gain  So basically Fabspeed Motorsport replicated this proven design in CNC machined aluminum so the valuable and rare Porsche airbox coverlids DO NOT need to be irreparably butchered. 


The factory 994 "911" Carrera airbox is designed to muffle and reduce the sound the induction note of the Flat-Six engine to keep it quiet period. The Fabspeed CUP airbox coverlid added to any stock 964 factory airbox lets all that glorious air cooled flat six sing and increases flat-six induction signature sound that we all cherish while adding significant power gains in under 10 minutes. 


Major significant DYNO proven power increase over the stock airbox coverlid DUE to dramatically increased airflow to the mighty air-cooled flat six engine!


  • Fits all 964 Carrera vehicles worldwide. Coupes, cabriolets and the 964 RS cars. 1989-1994
  • 100% Guaranteed to maximize Horsepower , Torque and enhance sports car sound for the 964 flat six in 3.6 liter and 3.8 liter conversions.
  • Adds 9.1 ft/lbs of torque and 11.2 horsepower Dyno proven significant power and significant improved throttle response on larger performance engines.
  • CAD designed, CNC machined from billet aluminum T6061 - then anodized Champagne gold to closely machine Porsche Golden cadmium plated engine hardware. 
  • Anodized gold to match the gold zinc plated hardware in the engine bay
  • Direct replacement for any and all Porsche 964 restrictive intake snorkel OEM airbox front cover lids.
  • Compatible with any OEM Porsche 964 paper factory airfilters, all K & N aftermarket filters and  the BMC Air Filter upgrade
  • Simple 5 minute DIY, doityourself, installation. Quickly and easily reversible for Concours events. 
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty




Returns Policy

To RETURN any system, product or merchandise you must contact us first for a Return Authorization (RA) Number. Special order and custom made systems, apparel, Carbon Fiber Wall Art, and other certain merchandise are NOT returnable. ALL SALES ARE FINAL. To return a Fabspeed Motorsport product an RA number must be requested and if granted the item(S) must be in original Fabspeed Motorsport sealed packaging. A copy of the original invoice and a brief explanation must accompany all returned items. You must follow our instructions for returning items carefully, or Fabspeed Motorsport reserves the right to charge a 25% restocking fee on any OPENED box or repackaged products. Customers are responsible for return shipping charges. If an order was shipped with a promotional “Free Shipping”, and the order is returned, we exclusively reserve the right to charge the customer or distributor for the cost of that original shipping and handling. If a Fabspeed Motorsport Performance package is ordered, and an individual component of that package is returned, Fabspeed Motorsport reserves the right to charge back the performance package discount along with any additionally offered discounts. Return shipped items DAMAGED in transit will RESULT in additional charges up to and including rejection of the competent. It is the customer’s responsibility to ship safely and properly. No returns accepted after 30 days from the invoice date. No credits will be given after 30 days from the invoice date.

To qualify for return, the product must be unused and remain in the original packaging, as well as match the current design and packaging for the product at the time of return. Sounds is subjective and therefore does not qualify for a return of a used product. See Sound Solution Guarantee to see if your product is covered.

Periodically mistakes are made when ordering, or a wrong part is shipped, and you may wish to return an item. We will do everything reasonable to satisfy you. Please contact Fabspeed Motorsport immediately via email at to discuss the circumstances before returning any products. Anything returned without prior authorization from Fabspeed Motorsport will be refused. All returns must be sent back fully prepaid. Our customer service department ( will issue a Return Authorization Number, which must accompany any return. A copy of the original invoice and a brief explanation must accompany all returned items. No returns accepted after 30 days from the invoice date. No credits given after 30 days.


Fabspeed Motorsport cannot be held liable for refusal of, delay of, loss of, theft or damage to a shipment of any item. The customer agrees to indemnify Fabspeed Motorsport for all costs, fees and expenses Fabspeed Motorsport incurs as a result of any violation of any local, state, federal, national or international laws or regulations. Customer agrees to take responsibility for lost packages that were not independently insured or sent without requiring signature. The customer understands they will be liable in the event of additional fees, tariffs, or legal issues such as border seizure. Customer accepts these risks and agrees to release Fabspeed Motorsport of all liability.

Fabspeed Motorsport reserves the right to charge a shipping and handling fee on every order being shipped from our facility. This fee is universal and applies to all retail and wholesale purchases and cannot be waived or credited.

A 6% sales tax will be implemented for every purchase made by a Pennsylvania resident. This fee will be charged for in-house installations and products purchased online, over the phone, and/or via email, this fee is required by law, is non-negotiable and non-refundable.

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