JDMuscle Interior Parts

The best interior upgrades for a WRX or WRX STI are the parts you see and touch every time you drive. JDMuscle's interior catalog focuses on those touch points: custom carbon fiber steering wheels in the Carbon Lite Series, Suji Series shift knobs, Tanso pre-preg carbon fiber trim covers for the dash, door panels, and center console, carbon fiber e-brake handles, Cobb AccessPORT vent mounts, and wireless Carplay adapters. The range is built for the 15-21 VA and 22-26 VB WRX/STI chassis, plus select parts for the BRZ/GR86 — check your year and model.

Interior mods split into the parts your hands meet and the trim your eyes meet. For touch points — wheel, knob, e-brake — the call is about feel: grip material, knob shape and weight, handle finish. For trim, choose between stick-on carbon covers and full replacements that swap the factory piece; both appear here, so read each listing. Note the transmission, too — custom steering wheels are listed separately for MT and CVT cars.

The brands behind these parts

JDMuscle is the house brand behind this catalog, and its interior line is developed chassis by chassis rather than as universal accessories. The range covers the 15-21 VA and 22-26 VB WRX and WRX STI, extends to the BRZ/GR86, and includes select 23-26 Nissan Z pieces. Custom wheels are built to order; trim covers come in black or red carbon.

Tanso is JDMuscle's pre-preg carbon fiber line. Pre-preg carbon is cured under heat and pressure instead of hand-laid with wet resin, giving a tighter weave and a lighter, more consistent part. In the interior range, Tanso covers dash trim, door panel covers, console side trims, shifter trim, and cup holder covers in a gloss finish.

Suji Series is JDMuscle's shift knob line, offered in piston and sphere shapes. Subaru applications use an M12x1.25 thread pitch; universal versions list their own pitch, so confirm your thread before ordering. The LUX Series adds leather and suede knobs, and the P&S Series covers multi-piece carbon trim kits in black or red carbon.

See interior trim and accessories, shop steering wheels and shift knobs, add carbon with WRX carbon fiber interior parts, or monitor your build with gauges. Popular picks: the Cobb AccessPORT vent mount and the wireless Carplay adapter. For ideas, read Our Best Interior Trim Accessories.

Do I need an MT or CVT steering wheel?

Order the version that matches your transmission — custom wheels are listed separately for MT and CVT cars. Check your year and model on the listing before ordering.

How hard is it to install carbon trim covers?

Stick-on covers install with basic hand tools and no permanent modification: clean, test-fit, and bond. Full replacements take longer since factory panels come off.

Why are some steering wheels marked special order?

Custom wheels are built to order in your choice of carbon fiber, paint, Alcantara, leather, or forged finishes, so they ship on a build lead time rather than from shelf stock.

Will a shift knob fit my car?

Suji Series Subaru applications use an M12x1.25 thread pitch; universal knobs list their own pitch. If your car is not listed, check your shifter's thread first.