Description

Key Details

Brand: 326POWER
Manufacturer: 326POWER Japan
Product: 3D☆STAR S15 Silvia Rear Under Spoiler
Category: Aero
Compatible Vehicle: Nissan S15 Silvia
Product Type: Rear Under Spoiler
Design Concept: Factory + α rear styling
Styling Character: Dynamic, integrated, and drift-inspired
Related Aero: Compatible styling with Raguppane and Roof Spoiler
Finish: Unpainted white gel coat finish
Installation Requirement: Test fitting, preparation, and painting required
SKU: Not clearly stated in the official pages reviewed. 

Common Applications

The 326POWER 3D☆STAR S15 Silvia Rear Under Spoiler is suitable for owners who want to strengthen the lower rear appearance of the S15 without replacing the complete factory bumper. Its styling works particularly well for lowered street cars, drift-inspired builds, stance projects, show vehicles, and other Japanese tuning-style S15 builds. It can also be combined visually with the 326POWER Raguppane, Roof Spoiler, or General Purpose Lip Type 1 for a more complete rear-end setup. Final compatibility depends on the vehicle's rear bumper condition, exhaust configuration, ride height, surrounding aero, and installation method. If you are unsure whether this Rear Under Spoiler is suitable for your S15 Silvia, please contact us before ordering. Contact us.

326POWER Character

326POWER is closely associated with Japanese stance culture, drift-style builds, low vehicle setups, aggressive fitment, and distinctive aero styling. The S15 Rear Under Spoiler reflects this character without relying on a complete bumper replacement. It adds visual weight to the lower rear while preserving the recognizable S15 silhouette, making it suitable for customers who want a more aggressive appearance while still retaining much of the original body design.

3D☆STAR S15 Silvia Design Notes

326POWER describes the Rear Under Spoiler as an additional factory-plus aero piece that gives the rear of the S15 more presence from different viewing angles. The manufacturer also states that the unified styling was developed so the aero does not disrupt the overall form of the vehicle. Aerodynamic improvement is mentioned by 326POWER as part of the design concept, although no numerical aerodynamic testing figures are published on the current product page.

Factory + α Rear Styling

The main idea behind this Rear Under Spoiler is to build on the factory S15 rear design rather than replacing it. The spoiler occupies the lower rear area and adds another visual layer beneath the bumper, giving the car a more finished and modified appearance while retaining the original bumper shape.

This makes it different from the full 3D☆STAR S15 rear bumper, which is a separate product intended as a complete bumper replacement.

Drift-Inspired Styling

326POWER specifically notes that the Rear Under Spoiler suits the drift scene. The lower, more aggressive rear profile works naturally with the type of low ride height, wide wheel fitment, and visually strong rear styling commonly associated with modified S15 Silvia builds.

Compatibility with Raguppane and Roof Spoiler

The manufacturer specifically highlights the Rear Under Spoiler as working particularly well visually with the S15 Raguppane and S15 Roof Spoiler. Together, these parts can create a more complete upper- and lower-rear styling package while maintaining the characteristic 326POWER design language. These additional components are separate products and are not included with this Rear Under Spoiler.

General Purpose Lip Type 1 Combination

The official 326POWER demo car shows General Purpose Lip Type 1 installed underneath the Rear Under Spoiler. This adds another lower layer and creates a more aggressive rear profile. The Lip Type 1 is an optional separate product and should not be assumed to be included with the Rear Under Spoiler.

Installation and Fitment Notes

The Rear Under Spoiler must be test fitted to the actual S15 Silvia before painting. Rear bumper alignment, mounting positions, left-to-right symmetry, exhaust clearance, ground clearance, and the relationship between the spoiler and any additional lower lip should all be checked during temporary installation. 326POWER specifically instructs installers to perform test fitting, gap adjustment, and vehicle-specific fitment correction before paint. If mounting-hole positions are difficult to align, gradual adjustment such as elongated-hole processing may be required.

Aero Product Notes

The Rear Under Spoiler is supplied unpainted in a white gel coat finish, and installation and painting are not included. It should be inspected, test fitted, aligned, prepared, and painted before permanent installation. Any drilling, minor trimming, sanding, mounting adjustment, or other fitment correction required for the individual vehicle should be completed before final painting. Because the component extends the lower rear profile, ground clearance and exhaust clearance should be checked carefully on lowered S15 builds.

Demo Image Notes

This listing is for the 3D☆STAR S15 Silvia Rear Under Spoiler. The manufacturer's demo vehicle shows General Purpose Lip Type 1 fitted to the spoiler, and other images may also show the Raguppane, Roof Spoiler, wheels, suspension components, exhaust parts, or other modifications. These additional products should be treated as separate unless specifically stated as included. 326POWER also notes that published product images are illustrative and may differ from the actual supplied product.

Shipping and Lead Time

Availability may vary depending on supplier and production status.
Additional shipping fees may apply depending on destination.
International delivery timing may vary by country, customs clearance, and carrier.

Note: Shipping price listed on website is only for USA customers. For other country, please contact us individually after placing an order. We will revise the shipping quotation.

Important Notes

This is an authentic 326POWER Japan 3D☆STAR aero product designed for the Nissan S15 Silvia. The Rear Under Spoiler follows a factory + α concept, adding a stronger lower-rear appearance while retaining the factory bumper. 326POWER specifically describes the design as suitable for drift-oriented styling and as visually compatible with the Raguppane and Roof Spoiler. The manufacturer's demo car also uses General Purpose Lip Type 1 beneath the spoiler, but that lip and other aero components are separate products unless specifically stated otherwise. The Rear Under Spoiler is supplied unpainted in white gel coat finish and requires test fitting, alignment adjustment, preparation, and painting before final installation. 326POWER states that the product was developed for show and event use and does not guarantee vehicle-inspection compatibility or assume responsibility for damage resulting from public-road use.

FAQ

Is this an authentic 326POWER product?
Yes. This is an authentic 326POWER Japan 3D☆STAR aero product.

What vehicle is this Rear Under Spoiler designed for?
It is designed for the Nissan S15 Silvia.

Does this replace the complete rear bumper?
No. This is a Rear Under Spoiler designed as an additional lower aero component rather than a complete replacement rear bumper.

What does 326POWER mean by factory + α styling?
It refers to adding another styling element to the original vehicle design while retaining the factory bumper and overall body character.

Is this suitable for drift-style builds?
Yes. 326POWER specifically states that the Rear Under Spoiler also suits the drift scene.

Can it be combined with the S15 Raguppane?
Yes. 326POWER specifically highlights the Rear Under Spoiler as working well visually with the Raguppane.

Can it be combined with the S15 Roof Spoiler?
Yes. The manufacturer also specifically mentions strong visual compatibility with the S15 Roof Spoiler.

Does this listing include the Raguppane or Roof Spoiler?
No. Those are separate products.

Does the Rear Under Spoiler include General Purpose Lip Type 1?
No. The manufacturer demo vehicle shows General Purpose Lip Type 1 installed underneath the Rear Under Spoiler, but the lip is a separate product.

Does 326POWER claim an aerodynamic benefit?
326POWER states that the integrated design improves aerodynamics without disturbing the overall vehicle form. However, the current product page does not provide numerical aerodynamic performance data.

What finish does the Rear Under Spoiler come in?

It is supplied unpainted in a white gel coat finish.

Does it come painted?
No. Painting and installation are not included.

Does it need to be test fitted before painting?
Yes. 326POWER specifically requires test fitting, gap adjustment, and vehicle-specific fitment correction before painting.

Can mounting-hole adjustment be required?
Yes. If hole positions are difficult to align, 326POWER notes that gradual adjustment such as elongated-hole processing may be required during test fitting.

Should exhaust clearance be checked?
Yes. The spoiler occupies the lower rear area, so exhaust positioning and surrounding clearance should be checked during test fitting.

Should ground clearance be checked?
Yes. Final rear ground clearance should be checked carefully, particularly on lowered S15 Silvia builds.

Can demo images show additional products?
Yes. The demo car may show General Purpose Lip Type 1, Raguppane, Roof Spoiler, wheels, suspension parts, or other modifications that are separate from this listing.

Can this be used on public roads?
326POWER states that the product was developed for show and event use, does not guarantee that it will pass vehicle inspection, and does not assume responsibility for damage resulting from public-road use.

Is professional installation recommended?
Yes. Professional test fitting, rear-bumper alignment, surface preparation, painting, and final installation are strongly recommended.