ADRO Carbon Fiber Rear Diffuser for G20 BMW M340i (LCI) [A14A70-1302]
$1,355.00
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The Adro BMW G20 M340i LCI carbon fiber rear diffuser is a well-considered upgrade for owners who want a cleaner, more defined rear end without going overboard. The wet carbon construction, hand finishing, and 3-piece architecture make it a genuinely premium option for the LCI M340i.
These items are typically not in stock and either made-to-order or special order from the manufacturer. After you order we will confirm the estimated lead time and other order details. If you have a specific deadline to receive this order please talk to us before placing your order to ensure that the manufacturer can meet your expectations.
ADRO Carbon Fiber Rear Diffuser for G20 BMW M340i (LCI)
The Adro BMW G20 M340i LCI carbon fiber rear diffuser brings a more sculpted, sophisticated presence to the rear of the G20. Built from premium wet carbon fiber and hand finished with close attention to detail, its original 3-piece construction creates a layered, tailored look that adds genuine depth and definition to the rear profile. Compatible with 2023+ BMW G20 M340i and M340D LCI models, this diffuser is a subtle yet striking upgrade that feels both refined and unmistakably purposeful.
Construction and Materials
The diffuser is made from wet carbon fiber, a process that produces a denser, stronger laminate than dry carbon alternatives. Each piece is hand finished, so the surface quality and weave alignment reflect a higher standard of care than mass-produced alternatives. The 3-piece design is not simply a visual choice; it creates a layered profile that gives the rear end more dimension and visual structure than a single-panel diffuser can achieve.
Features
Wet carbon fiber construction
Hand finished, 3-piece design
Layered, tailored aesthetic with added depth and definition to the rear profile
What is the Adro BMW G20 M340i LCI carbon fiber rear diffuser compatible with? The Adro BMW G20 M340i LCI carbon fiber rear diffuser is compatible with 2023 and newer BMW G20 M340i and M340D LCI models. It is also designed to pair with the Adro G20 M340i LCI Carbon Fiber Rear Winglets (part number A14A70-1301) for a more complete rear aero setup.
Does the Adro G20 M340i LCI diffuser fit pre-LCI G20 models? No. This diffuser is engineered specifically for the LCI (facelift) rear bumper found on 2023+ G20 M340i and M340D models. The pre-LCI G20 rear bumper uses different geometry, and this piece is not designed to fit or mount correctly on those earlier variants.
What type of carbon fiber is used in the Adro G20 M340i LCI rear diffuser? The Adro G20 M340i LCI rear diffuser is made from wet carbon fiber. Wet carbon is produced using a resin-saturated layup process that results in a denser, stronger laminate compared to dry carbon. Each piece is also hand finished for consistent surface quality and weave alignment.
Why does the Adro M340i LCI diffuser use a 3-piece construction? The 3-piece design is central to the diffuser’s look. Rather than a flat single-panel insert, the layered construction creates depth and definition at the rear bumper, giving the M340i LCI a more sculpted, tailored profile. It is part of what distinguishes this diffuser from simpler bolt-on alternatives.
What comes in the box with the Adro G20 M340i LCI carbon fiber rear diffuser? Each order includes the 3-piece carbon fiber rear diffuser, 3M tape, the required bolts and screws, and an installation manual. Everything needed for installation is included in the box.
About ADRO
Established in 2020, Aerodynamic Development Race Optimization (ADRO), strives to provide top-notch aerodynamic body kits. The company came into being due to the combined passion for racing of its co-founders, CEO Dongwan Yoo, and CTO Sean Yoon. The duo connected in 2010 via a mutual friend and found common ground in the beauty and power of race cars. They spent several years honing their skills by crafting custom body kits for KDMs as a pastime. Noticing an increase in demand for their hobby, they decided to co-found ADRO and expand their product range. ADRO’s high-quality products are conceptualized in California and are crafted with precision in South Korea.
Additional Information
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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
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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
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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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