Description

Key Details 

Brand: 326POWER
Manufacturer: 326POWER Japan
Product: Gachabari Medium 2 Rear Fender
SKU: M2R/Fenders15
Category: Aero
Subcategory: Fenders
Compatible Vehicle: Nissan S15 Silvia
Rear Width Increase: Approximately 45 mm compared with stock
Rear Arch Position: Approximately 5 mm higher than stock
Fender Style: Cover-type rear overfender
Factory Bumper / Side Step Compatibility: Compatible
Finish: Unpainted white gel coat finish
Installation Requirement: Test fitting, preparation, and painting required.

Common Applications

The 326POWER Gachabari Medium 2 Rear Fender is suitable for S15 Silvia owners who want substantially more rear body width for aggressive wheel fitment, lower ride heights, stance builds, drift-inspired projects, street cars, or show vehicles while retaining a balanced front-to-rear wide-body appearance. Its approximately 45 mm rear increase matches the width of the corresponding Medium 2 front fender, making it particularly suitable for customers who prefer equal front and rear width rather than the 45 mm front / 55 mm rear arrangement used by Medium 1. Final compatibility depends on the vehicle's body condition, bumper and side-step configuration, wheel and tire specification, suspension setup, ride height, and installation method. If you are unsure whether this Rear Fender is suitable for your S15 Silvia, please contact us before ordering. Contact us.

326POWER Character

326POWER is closely associated with Japanese stance culture, low vehicle setups, aggressive wheel fitment, drift-inspired builds, and distinctive wide-fender styling. Gachabari Medium 2 applies that character with a more balanced approach, using approximately 45 mm of additional width at both ends of the S15. The manufacturer specifically describes the result as a natural finish, allowing the car to gain considerable width without making the rear noticeably wider than the front.

Gachabari Medium 2 S15 Design Notes

Medium 2 follows the earlier Gachabari Medium concept but changes the proportions to approximately 45 mm wide at both the front and rear. At the rear, the fender follows the press line extending from the door, helping the added width integrate with the existing S15 body shape. The rear fender remains a cover-type component, while the corresponding front Medium 2 fender uses a factory-replacement design.

45mm Wide Rear Fender Design

The Gachabari Medium 2 Rear Fender extends approximately 45 mm farther outward than the factory S15 rear body. This provides significantly more space and visual presence around the rear wheels while creating equal nominal front and rear width when combined with the matching Medium 2 front fender. Wheel width, offset, tire dimensions, camber, and suspension settings should be planned together with the bodywork to achieve the intended fitment.

5mm Raised Rear Arch

326POWER positions the rear wheel arch approximately 5 mm higher than the factory position. This gives the Medium 2 rear fender additional clearance around the upper wheel area from the beginning, while still allowing further arch adjustment if the individual build requires it.

30mm Rear Arch Lip Design

The factory S15 rear arch lip is approximately 20 mm, while 326POWER sets the Medium 2 rear arch area at approximately 30 mm even after raising the arch approximately 5 mm. This additional material allows the installer to raise the arch further according to the wheel, tire, suspension, and ride-height setup. 326POWER notes that even if approximately 10 mm is removed, around 20 mm—the approximate factory amount—can remain.

Reinforced Arch Area

326POWER states that approximately twice the normal amount of FRP material is used around the wheel-arch area. This reinforcement provides additional strength and gives installers more material to work with when the arch needs to be reshaped or raised further for an individual vehicle setup.

Cover-Type Rear Fender Design

The Medium 2 rear fender installs as a cover-type component over the applicable rear-quarter area. 326POWER specifically designed the shape to follow the press line extending from the door, helping the wider section blend naturally into the existing body. Because the rear quarter is not a simple removable panel like the front fender, careful positioning and body preparation are particularly important during installation.

Double-Sided Tape Mounting Edge

326POWER incorporates a folded section along the product's mounting surface specifically so double-sided tape can be applied. The manufacturer describes this as helping create a more natural finished appearance once the fender is fitted to the body. This mounting feature does not remove the need for proper test fitting and secure professional installation.

Factory Bumper and Side Step Compatibility

The Medium 2 rear fender is designed to remain compatible with the genuine S15 bumper and factory side step. This allows customers to widen the rear-quarter area without automatically replacing the surrounding aero components. The actual bumper-to-fender and side-step relationships should still be checked on the individual vehicle before painting.

Fuel Filler Area

Unlike Medium 1, where a dedicated fuel filler lid is listed with the rear configuration, Medium 2 is designed to reuse the factory fuel filler cap. 326POWER includes an extension stay for the fuel-filler catch, helping adapt the factory component to the wider rear fender position.

Medium 2 vs. Medium 1

One of the main differences between Gachabari Medium 1 and Medium 2 is rear width. Medium 1 uses approximately 45 mm at the front and 55 mm at the rear, whereas Medium 2 uses approximately 45 mm at both the front and rear. The Medium 2 rear therefore offers a slightly more balanced and restrained rear profile while still providing a substantial increase over the factory S15 body.

Wheel and Suspension Planning

An approximately 45 mm increase in rear width significantly changes the relationship between the wheels and body. Wheel width, offset, tire dimensions, camber, suspension height, travel, and inner clearance should therefore be planned before final bodywork is completed. If the rear arch will be raised further, that modification should also be decided alongside the wheel and suspension specification.

Installation and Fitment Notes

The Gachabari Medium 2 Rear Fender must be test fitted to the actual S15 Silvia before painting. Rear-quarter positioning, press-line alignment, bumper and side-step transitions, wheel-arch position, fuel-filler area, tire clearance, suspension travel, and left-to-right symmetry should all be checked before permanent installation. 326POWER specifically requires test fitting and vehicle-specific alignment adjustment before painting. If mounting-hole positions are difficult to align, gradual adjustment such as elongated-hole processing may be required. Additional trimming, sanding, bonding, arch modification, drilling, or other body-shop work may also be necessary depending on the vehicle.

Aero Product Notes

The product is supplied unpainted in a white gel coat finish, and installation and painting are not included. 326POWER specifically confirms additional FRP material around the arch area, where approximately twice the normal amount is used to support further arch modification. All required fitting, arch adjustment, alignment, and surface preparation should be completed before the final paint finish is applied.

Demo Image Notes

This listing is for the Gachabari Medium 2 Rear Fender. Demo images may show the matching Medium 2 Front Fender, body-kit components, wheels, suspension parts, wings, exhaust components, or other vehicle modifications. These additional items should be treated as separate unless specifically stated as included. The official listing also states that product images are for illustrative purposes 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 Gachabari Medium 2 product developed for the Nissan S15 Silvia. The Rear Fender uses a cover-type design that adds approximately 45 mm of width compared with stock and positions the rear wheel arch approximately 5 mm higher than the factory location. The arch area is approximately 30 mm thick and uses additional FRP reinforcement to allow further arch adjustment when required. The rear fender follows the press line from the door, remains compatible with the genuine bumper and side step, and includes a folded mounting surface for double-sided tape. The original fuel filler cap is reused, and an extension stay for the catch is included. The product is supplied unpainted in white gel coat and requires test fitting, alignment adjustment, preparation, and painting before final installation. Other aero components and modifications shown in demo images are separate unless specifically stated otherwise. 326POWER states that the product was developed for shows and events 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 Gachabari Medium 2 product.

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

What is the SKU?
The official 326 International SKU is M2R/Fenders15.

How much wider is the Rear Fender than stock?
It is approximately 45 mm wider than stock.

Is the rear wheel arch raised?
Yes. It is positioned approximately 5 mm higher than the factory arch.

Is this a replacement-type rear fender?
No. The rear uses a cover-type design that follows the press line from the door.

How thick is the rear arch area?
326POWER sets the Medium 2 rear arch lip at approximately 30 mm, compared with approximately 20 mm on the factory fender.

Can the rear arch be raised further?
Yes. The additional arch material allows further raising according to the wheel, tire, suspension, and ride-height setup.

Is the arch area reinforced?
Yes. 326POWER states that approximately twice the normal amount of FRP material is used around the arch area.

What is the purpose of the folded mounting edge?
The rear fender has a folded mounting surface that allows double-sided tape to be applied, helping create a more natural finished appearance.

Is it compatible with the factory rear bumper?
Yes. 326POWER specifically states that the Medium 2 rear fender is compatible with the genuine bumper.

Is it compatible with the factory side step?
Yes. The rear fender is also designed to work with the genuine side step.

Is a new fuel filler cap included?
No. 326POWER specifies that the factory fuel filler cap is reused.

Is anything supplied for the fuel filler catch?
Yes. An extension stay for the catch is included.

How is Medium 2 different from Medium 1?
Medium 2 uses approximately 45 mm of additional width at both the front and rear. Medium 1 uses approximately 45 mm at the front and 55 mm at the rear.

Is a matching Medium 2 Front Fender available?
Yes. 326POWER also offers a matching approximately 45 mm-wide Medium 2 Front Fender for the S15 Silvia.

Is a complete Front + Rear Medium 2 set available?
Yes. A matching Front + Rear Fender Set with approximately 45 mm of width at both ends is also offered.

What finish does the Rear Fender come in?
It is supplied unpainted in a white gel coat finish.

Does it come painted?
No. Installation and painting are not included.

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

Can mounting-hole adjustment be required?
Yes. If the mounting positions are difficult to align, slight adjustment such as elongated-hole processing may be required during test fitting.

Should wheels and suspension be planned together with the fender?
Yes. The approximately 45 mm increase in rear width means wheel width, offset, tire size, camber, suspension height, and final arch position should all be considered together.

Can demo images show additional products?
Yes. Front fenders, aero components, wheels, suspension parts, wings, and other modifications may appear in demo images and are separate unless specifically stated as included.

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

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