Aero Function® - Trunk Lid

42 reviews|Item # sp835
$87.00 - $666.00
In Stock - Ships in 24 to 48 hrs
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Product Details

Trunk Lid by Aero Function®. Remove a great deal of mass from your vehicle with this 1-piece replacement trunk lid that's light weight, strong, and dent-resistant. Advanced design and patented materials result in composite material that resists warping or cracking with undiminished integrity over many years and miles. 3-year manufacturer warranty.


  • 1-piece replacement trunk lid piece features aggressive styling
  • Built-in spoiler lip provides more stable handling at higher speeds
  • Light weight construction reduces the mass of your vehicle for increased performance
  • Advanced design and materials ensure resistance to chipping, warping, or deterioration
  • Specifically designed for your make and model vehicle
  • Will require painting and prepping to match your vehicle color
  • 3-year manufacturer warranty

Aero Function Trunk Lids cut a great deal of weight from your vehicle when installed in place of OEM metal ones. This composite trunk lid is a 1-piece replacement panel that's light weight, strong, and dent-resistant. The part is delivered ready to paint and afterwards, installation is easy because the lightweight trunk lid is pre-drilled and utilizes original factory attachment points and hardware. Advanced computer aided design and high-tech manufacturing processes ensure all Aero Function components fit evenly against every panel and contour of your specific make and model. Once parts have been prepped and installed on your vehicle, they achieve a look that matches the quality of original equipment without the gaps, uneven edges, and poor visual continuity that plague parts from inferior competitors.

Depending on vehicle application, your trunk lid may be produced from carbon fiber plastics, fiberglass composites, or polyurethane polymers. Aero Function is well-respected throughout the industry for the development of each of these lightweight composite materials which feature extremely high levels of strength, rigidity, and superior impact absorption. Even under the harshest climates and conditions, Aero Function parts have proven their ability to maintain integrity without warping or cracking for long periods of time. Even under the harshest climates and conditions, Aero Function parts have proven their ability to maintain integrity without warping or cracking for long periods of time. Trunk lid panels are backed with a 3-year warranty against manufacturing defects.

Founded in the late 1990s in Fullerton, California, Aero Function® is part of the Extreme Dimensions group of premiere automotive parts manufacturers. Drawing on a wide pool of engineering talent, Aero Function specializes in producing aerodynamic accessories for high end luxury vehicles made from advanced composite polymers they have developed in house. Aero Function is known worldwide for their carbon fiber plastics (CFP), handmade fiber glass composites, and Pur Rim polyurethane plastic composites that set industry standards for quality of fit, light weight, and durability in the toughest of climates. Aero Function offers a wide range of stylish products to customize your vehicles with add-on aero pieces such as front spoilers, lips, side skirts, roof wings, and trunk caps. They also offer light weight replacement bumpers, bumper covers, hoods, and trunk lid panels designed for the discriminating performance enthusiast that seeks increase performance while they add a high-dollar look to their vehicle. All components are designed for your specific make and model to fit right and look great for the long haul.

Warranty Information

All body kits and products sold by Aero Function are aftermarket products and are intended for off-road or show use only. The brand is not liable for any damages or injury as a result of the use of its products. Due to the material and processes used in production, products will not be a “direct bolt-on.” Aero Function products may need prepping, sanding, shaving, filling gaps, and/or other body work. Modifications may include removal of the reinforcement bars, bumpers, turn signals, and other safety equipment on the vehicle. Aero Function highly recommends that a professional “custom” shop with fiberglass body kit experience perform the installation. Auto shops experienced in OEM installations may not be experienced in aftermarket fiberglass installations. All products sold by Aero Function are for off-road and show purposes only. Due to strict regulations by the Department of Transportation, some of these products are not approved for street/highway use. The brand does not recommend, and in fact discourages, these parts to be used on public streets and highways.


Aero Function warrants its branded products to be free from manufacturing defects in workmanship and materials when used for their intended purposes. This limited warranty shall extend for a period of three (3) years on all Aero Function products. This warranty is non-transferable. Any part of a Aero Function product that is covered by this warranty and that is found in reasonable judgment to be defective in materials or workmanship will be replaced in full at the request of the customer. For example, Aero Function will not replace a complete body kit if a single component is found to be defective. The following situations are not covered by warranty: Any Aero Function product that has been subject to misuse, neglect, accident; or that has been improperly installed. Any Aero Function product that has been modified or altered from its original manufactured state.

Hood and Trunk Fitment Guarantee

Aero Function stands behind the fitment of its products. Once your hood is installed, Aero Function will fully replace your hood if it does not fall within the following guidelines of the brand’s Fitment Guarantee. Hood does not clear a stock engine. Gaps between the hood and the fenders are more than 1/2″ wide on each side. Hood levels more than 3/8″ higher or lower than the fenders. Latch is too long or too short compared to the stock latch, causing the hood not to latch after adjusting. Aero Function does not guarantee fitment on vehicles that have been involved in accidents and/or have had body damages or customization. Hood pins are required.


Gaps between the trunk and the rear fenders are more than 1/2″ wide on each side. Trunk levels more than 3/8″ higher or lower than the rear fenders. Aero Function does not guarantee fitment on vehicles that have been in involved in accidents and/or had body damages or customization.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Product Reviews


Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

Aero Function® - AF-3 Style Carbon Fiber Trunk Lid
Aero Function® - Trunk Lid
Average Rating: 4 of 5
4.3 of 5
Good Product
This product looks great and light only issue is that it needs some minor fabrication done to it.
Posted by (Santa Ana, CA) / 2006 BMW 3-Series
Was this review helpful for you? Yes
3.8 of 5
Lexus Trunk Review
When I ordered this in January of 2017 I was looking to upgrade my 2010 Lexus IS 250. The trunk is not predrilled so you will have to do some drilling yourself, but hey it comes with an already built in ducktail spoiler so you already get the +6 hp gains. Shipping is like $89 which was a total surprise since I thought it would be free since I bought something the price of $500. But for the shipping price they really package it up and I mean they really package it up, taking apart the package took me longer than a Honda Civic doing it's quarter mile. If you are looking for a quality trunk without completely breaking the bank then I would recommend this carbon fiber trunk. And it comes with an Extreme Dimensions sticker so you get an additional +5 hp. So for around $680 you get. A new trunk and +11 hp ;). But on the real note: its more affordable.
Posted by (Bridgeport, WV) / 2010 Lexus IS
Was this review helpful for you? Yes
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