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Subaru WRX STI (2015–2021) Engine Dress-Up FAQ's

Please read our FAQs page to find out more.

What dress‑up pieces make the STI bay look cohesive?

Titanium fastener sets, coil cover hardware, and fluid caps replace corroded bolts and create a unified finish around the intercooler and intake tract.

Will titanium hardware gall in the STI engine bay?

Apply anti‑seize on dissimilar metal interfaces and torque to spec. Titanium resists corrosion; proper prep prevents galling during service.

Can I mix colors without the STI bay looking busy?

Pick a primary anodized tone, then use a secondary color sparingly on caps or brackets. Match brake caliper accents for a tied‑together theme.