Custom Shift Knobs & Interior Mods

Billetworkz Subaru STI SI-Drive Knob Cap

Billetworkz Subaru STI SI-Drive Knob Cap - Main image
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$36 $50 In stock

Category: SI Drive Cap

Refresh your Subaru STI’s interior with the Billetworkz SI-Drive Cap – a direct replacement for your factory button cover that adds a bold, custom touch in minutes.

Crafted for STI models equipped with Subaru’s SI-Drive system, each cap is precision CNC-machined from high-quality billet aluminum and finished in a range of durable colors. Whether you want a subtle accent or a standout detail, there’s an option to match your build and style.

Elevate your cabin with a premium upgrade that combines precision, durability, and style.

Before you pay

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Matthew ★★★★★

The aluminum finish matches my interior trim perfectly and it snapped right on without any fuss. Gives the shifter area a much cleaner, more modern look than the stock plastic piece.

Leo ★★★★★

Took maybe two minutes to pop off the old cap and snap this one on, and the fit is absolutely perfect—no wobble or loose edges. The black finish gives the center console a much cleaner, more aggressive look without being flashy. Really glad I finally swapped that factory piece.

Emma ★★★★★

The aluminum finish matches my interior trim perfectly and it snapped right into place with zero wobble. Installation took maybe 30 seconds and now the SI-Drive selector actually feels premium to touch.

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