GCS Exterior & Interior Accessories

What are the best GCS parts for a Subaru? The strongest picks are the carbon fiber interior trim, e-brake handles and buttons, gloss black fender emblems, and F1-style rear fog and brake lights — affordable, Subaru-specific styling upgrades that dress up the cabin and exterior without cutting, drilling, or permanent modification. Every piece is designed as a direct replacement for a factory part, so most installs are a straightforward swap.

GCS is an aftermarket styling brand that focuses squarely on Subaru models, building the small details that make a cabin feel finished. Its catalog includes carbon fiber AC knob accent trim for 15-21 WRX and STI, 14-18 Forester, and 13-17 Crosstrek; carbon fiber e-brake replacement handles and colored e-brake buttons covering 2015+ WRX and STI, 2013+ BRZ, Crosstrek, Forester, FR-S, and Toyota 86; gloss black fender emblems; and a CS Style rear F1 fog and brake light for 2015+ WRX and STI plus 2013+ Crosstrek. The line even includes universal hardware like hubcentric rings for proper wheel centering. If you want one brand to handle your Subaru's interior and exterior detailing in a single order, this collection is it.

OLM is another Subaru-specific styling brand whose lighting and trim accessories sit naturally alongside GCS parts — if you are upgrading the rear F1 fog light, OLM's catalog is the natural next stop for matching front-end lighting. StickerFab takes a different approach to the same goal: custom vinyl decal and badge overlays that layer over factory emblems and trim, a fully reversible complement to GCS's hard-part accents. For broader context, our exterior trim and interior trim and accessories collections carry the full range of detailing parts these brands plug into.

Popular pieces in this collection include the GCS carbon fiber AC knob accent trim, the carbon fiber e-brake replacement handle, and the CS Style rear F1 fog and brake light. Also see our guide to upgrading cockpit comfort in the WRX STI for inspiration on pairing trim upgrades.

Do GCS parts fit my Subaru?

Most GCS parts are model-specific — check the year and model in each product title before ordering. Fitments in this collection cover 2015+ WRX and STI, 2013+ BRZ, Crosstrek, Forester, FR-S, and Toyota 86, plus universal hardware like hubcentric rings.

How hard are GCS interior trim pieces to install?

Most are designed as direct replacements for factory trim: the AC knob accents and e-brake handles swap in with basic hand tools and no permanent modification. The F1 fog and brake light requires basic wiring, which is well within a weekend DIY install.

Will the carbon fiber trim fade or peel?

GCS carbon fiber pieces use a clear-coated finish for UV resistance. Like any carbon trim, keep it clean with a gentle interior detailer and avoid harsh solvents to keep the gloss looking new.

Can I mix GCS parts with OLM or StickerFab products?

Yes — they are designed around the same factory trim pieces, so GCS hard parts and vinyl overlays from other Subaru-focused brands layer together cleanly for a coordinated look.