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Rennsieger
BMW M4 | Stealth-X Rear Diffuser | Carbon Fiber
BMW M4 | Stealth-X Rear Diffuser | Carbon Fiber
Regular price
$799.00 CAD
Regular price
$1,099.00 CAD
Sale price
$799.00 CAD
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Take your BMW M4 F82/F83 to the next level with the Rennsieger Stealth-X Diffuser, designed to deliver the perfect combination of subtle aggression and advanced performance. Crafted from high-quality 3x3 twill weave carbon fiber, this one-piece diffuser integrates seamlessly with your M4’s rear, featuring built-in extensions that mold to the bumper, offering a sleek yet bold aesthetic.
But it’s not just about looks. This Diffuser is engineered for drivers who demand more from their machine. With optimized airflow and enhanced downforce, it keeps your M4 grounded and stable, allowing you to push boundaries, whether you're tearing through corners or cruising at high speeds. This diffuser brings both precision and performance in one meticulously crafted upgrade.
Subtle yet powerful, the Rennsieger Stealth-X Diffuser offers an OEM-inspired appearance with just the right amount of added edge. It complements the M4’s natural lines while improving performance, delivering a clean, factory-fit finish that feels like it was always meant to be there. Ideal for those seeking sophistication without compromising on boldness.
* This product was designed using the combination of 3D design with CAD Technology for a precise fit
Fitment
Fitment
(14-19) BMW M4 | F82
(14-19) BMW M4 | F83
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Features
Features
Designed and engineered by Rennsieger™
Extremeley lightweight and durable
UV-resistant clearcoat
The Weave
Triaxial Balanced Carbon Fiber Pattern: At first glance this might look the same as 2×2 Twill weave, but it’s pattern is actually different. The number of fiber directions vary from two to three. Changing the orientation of the fibers from orthogonal to 60 degrees increases damage tolerance and improves energy absorption. The weave construction is ‘two over, two under’, alternating over and under the axial yarns. Applied for composite reinforcement in aerospace, engineering, sports equipment and automotive racing.
There are many triaxial patterns. The following list will give an overview of its fundamentals.
Triaxial weaving is part of the traditional craft of basketry. Its usage dates back to around 5,700 BC in Japan.
Triaxial weaving produces a material that is structurally superior to many sorts of rectangular weaving. Since the structural elements run in three directions, the fabric is resistant to shearing forces and doesn’t crimp easily.
Triaxial fabrics qualities include: good strain resistance, planar shear
What’s inside?
What’s inside?
1x Carbon Fiber Rear Diffuser
1 Year Warranty
* Package Includes All Necessary Installation Equipment
* Professional Installation Highly Recommended
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