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Lightweight carbon fiber grille for the 2018 Subaru WRX, 2018 Subaru WRX STI
The Seibon FG18SBIMP is a hand-laid 3K 2x2 twill weave carbon fiber over a fiberglass skeleton grille built specifically for the 2018 Subaru WRX, 2018 Subaru WRX STI. The UV-resistant gloss clear coat is factory-applied and ready to install. At up to 50% lighter than the OEM steel equivalent, it reduces unsprung weight for measurable gains in acceleration, braking balance, and cornering response.
Key Features
- Lightweight Carbon Construction: Replaces the OEM plastic grille with a hand-laid carbon fiber panel, reducing front-end mass with a functional, race-inspired appearance.
- 3K 2x2 Twill Weave: Consistent weave pattern and UV-resistant clear coat deliver show-quality carbon appearance straight from the box.
- Direct OEM Replacement: Clips directly into the factory grille opening using factory mounting points; no drilling or cutting required.
- Full Airflow Maintained: Open cell or vented design maintains radiator and intercooler airflow equivalent to or better than the factory grille.
- Seibon Fitment Guarantee: Test-fit verified against the target vehicle before production.
- Motorsport Heritage: Trusted by Seibon's global performance customer base for over two decades.
This Part Fits
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2018-2020 | Subaru | WRX | |
| 2018-2020 | Subaru | WRX | Limited |
| 2018-2020 | Subaru | WRX | Premium |
| 2018-2020 | Subaru | WRX STI | |
| 2018-2020 | Subaru | WRX STI | Limited |
Specifications
| Detail | Value |
|---|---|
| Part Number | FG18SBIMP |
| UPC | 887753486585 |
| Material | 3K 2x2 twill weave carbon fiber |
| Finish | Gloss UV-resistant clear coat |
| Construction | Hand-laid with fiberglass skeleton |
| Weight Savings | Up to 50% lighter than OEM equivalent |
| Hardware | Uses OEM mounting hardware; not included |
| Warranty | Seibon 6-month limited clear coat warranty; fitment guarantee |
What's Included
- 1x Seibon carbon fiber grille
- OEM-compatible mounting clips where applicable
Installation
- Gather tools: panel pop tool, Phillips screwdriver, trim removal kit.
- Open the hood and identify the OEM grille mounting clips along the top, sides, and bottom of the grille opening.
- Using a trim panel tool, carefully release all OEM clips starting from one corner and working around the perimeter.
- Remove the OEM grille and any associated trim bezels.
- Transfer any OEM emblem mounting hardware or badge clips to the carbon grille if applicable.
- Pre-fit the carbon grille in the opening to confirm alignment.
- Press the grille firmly into the opening, engaging all mounting clips until each one clicks into place.
- Verify the grille sits flush with surrounding bumper and hood surfaces.
Frequently Asked Questions
Does the grille come with the Seibon or OEM badge?Badges are not included. Transfer your OEM emblem from the factory grille, or leave the grille clean for a debadged look.
Does this maintain proper engine cooling airflow?Yes. Seibon grilles replicate or exceed the factory grille's open area to maintain equivalent airflow to the radiator and intercooler.
Is installation reversible?Yes. The grille clips into the factory opening using the same clip locations as the OEM grille. The OEM grille can be reinstalled without any modification to the vehicle.
What is the warranty?Seibon provides a fitment guarantee and a 6-month limited clear coat warranty. Under the Magnuson-Moss Warranty Act, this product does not void your vehicle's factory warranty.
Does it require painting?No. The UV-resistant gloss clear coat is factory-applied and ready for installation.
How do I clean the grille?Wash with mild soap and a microfiber cloth. Use a soft detailing brush to remove debris from the grille mesh or vents. Apply UV-protectant wax to the carbon surface after washing.
Will aftermarket front lip or splitter fitment be affected?Seibon grilles are designed for stock-configuration vehicles. If you have an aftermarket front bumper, verify grille opening compatibility before purchasing.
Can I install this without removing the front bumper?Most Seibon grilles are accessible from the front without bumper removal. Access the mounting clips through the grille opening using a trim tool.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
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I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
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Installation was easy
Installation was easy. The price is good and it looks great on the truck.
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