Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Description

STREETFIGHTER LA Carbon Rear Diffuser Set for G82 BMW M4

The STREETFIGHTER LA Carbon Fiber Rear Diffuser for the BMW G82 / G83 M4 enhances aerodynamics and styling with a bold, race-inspired design. Engineered using advanced 3D scanning and CAD technology, it ensures an OEM-quality fit with seamless integration into the factory rear bumper. Available as a center piece, side pieces, or a full three-piece set, it offers flexibility to match individual preferences. Constructed from high-quality carbon fiber, it provides a lightweight yet durable upgrade that improves airflow and high-speed stability. Designed for easy installation, it utilizes factory mounting points and 3M double-sided tape for a secure fit. Proudly made in the USA, this diffuser delivers an aggressive performance look while maintaining everyday functionality.

Features

Premium carbon fiber construction
Separated into 3 pieces – center and side pieces
Aerodynamic enhancements
Designed for both racing applications and daily driving
All STREETFIGHTER LA products are developed through scanning, CAD engineering, and precision milling / 3D printing for OEM quality fitment
Made in the USA

What’s Included

Center diffuser
Side diffusers (2)

Applications

BMW M4: G82 (2021-present)

More for G8x M4

Front lip (G82 / G83)
Side-skirt extensions (G82 / G83)
Rear spoiler (G82)

Notes

Does not fit G83 convertible models

About STREETFIGHTER LA

STREETFIGHTER LA is a performance-driven automotive brand specializing in high-quality aftermarket components for track enthusiasts and performance-oriented drivers. Known for precision engineering and expert craftsmanship, the company designs and manufactures products that enhance safety, aerodynamics, and structural rigidity without compromising functionality. Utilizing advanced materials like 4130 chromoly steel and aerospace-grade carbon fiber, STREETFIGHTER LA ensures optimal performance and durability. With a commitment to innovation and seamless integration, its products provide a factory-like fit while delivering superior strength and reliability for high-performance vehicles.

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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STREETFIGHTER LA Carbon Rear Diffuser Set for G82 BMW M4

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STREETFIGHTER LA Carbon Rear Diffuser Set for G82 BMW M4

Features

What’s Included

Applications

More for G8x M4

Notes

About STREETFIGHTER LA

Reviews