Stillen

Polyurethane Rear Diffuser

$327.43

SKU: KB12846

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Stillen Rear Diffuser, part number KB12846, is designed to enhance the aggressive styling of the 2019-2023 Nissan Maxima. This aerodynamic enhancement complements the vehicle's existing body lines, widening the rear bumper for a sportier appearance and drawing attention to the rear of the car. Constructed from durable and resilient polyurethane, this rear diffuser is built for longevity. It features race-inspired aggressive fins and deep air channels that contribute to its performance-oriented look. The diffuser comes unpainted, offering a versatile canvas for customization. Options include painting it to match your vehicle's color, a gloss black finish, dark gray, or even a hydrographic or vinyl wrap to achieve a carbon fiber look. The diffuser comes with genuine 3M automotive trim foam tape pre-applied, similar to OEM applications. An adhesion promoter is included to ensure a secure bond. For added stability, screws are also provided to fully secure the diffuser to the rear bumper. The product is removable and requires no cutting, trimming, or alteration to the Maxima. This rear diffuser is specifically designed for the 2019-2023 Nissan Maxima models. It integrates seamlessly with the factory exhaust cutouts. The product is backed by a Limited Lifetime Warranty, assuring quality and durability.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandStillen
Part NumberKB12846
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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