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Subaru · Widebody Kit

Subaru WRX STI Widebody Kit — AI Render of Your WRX STI Widebody build

Render your car with a widebody — fender flares, wider track, aggressive rear haunches. See it on your actual WRX STI before committing to the build.

Render your WRX STI free →

Widebody Kit on the Subaru WRX STI — What to Expect

A widebody kit on the Subaru WRX STI is one of the most transformative modifications you can make. The conversion adds extended fender flares — typically 30–80mm wider per side — allowing significantly wider wheels while creating the aggressive visual signature that defines widebody culture. On the WRX STI, this means a fuller wheel arch, a planted stance, and a car that looks completely different from any angle. The goal is a car that looks custom from the factory, not like an afterthought.

Real Build Cost for a WRX STI Widebody Kit

The widebody market for the WRX STI has evolved significantly. Entry-level FRP kits start around $1,500–$3,000 for the body parts alone. Mid-tier kits from established makers like Liberty Walk, Rocket Bunny, or Pandem run $3,000–$8,000. Carbon fiber kits and high-end fabrication work can reach $12,000–$20,000 before installation. Installation, body prep, gap filling, and paint typically add $2,500–$5,000 to any kit price — budget accordingly. The total cost for a well-executed WRX STI widebody build falls in the $4,000–$12,000 range.

Render your WRX STI before you buy anything

Before you commit money to a WRX STI widebody kit, seeing the visual result on your actual car matters. A kit that looks aggressive on a render of a stock silver WRX STI looks different on your specific trim, color, and wheel combination. That's why thousands of Subaru owners use TunedRides to render the transformation before the first part order is placed.

Upload your WRX STI photo — free →

How to Render Your WRX STI With a Widebody Kit

  1. 1
    Upload a photo of your WRX STI. Any angle works — side profile gives the best result for bodywork modifications like widebody kits. JPG or PNG, up to 10MB.
  2. 2
    Select Widebody Kit as your style. Our AI identifies your WRX STI's body lines and proportions, then applies the transformation accurately — not a generic edit, a render that respects your specific car.
  3. 3
    Download your photoreal render. Results in about 30 seconds. Free tier includes a watermarked version. Pro ($9/mo) gives unlimited HD renders without watermarks — perfect for sharing with shops or builders.

WRX STI Widebody Kit — FAQ

How much does a widebody kit cost for a WRX STI?

A widebody kit for a Subaru WRX STI typically costs $4,000–$12,000. The kit parts alone run $1,500–$8,000 depending on brand and material (FRP vs carbon fiber). Professional installation, body prep, gap filling, and paint typically add $2,500–$5,000. Budget for the full installed cost, not just the kit price.

Do I need to cut my WRX STI's fenders for a widebody kit?

Most widebody kits require fender modification — either cutting the inner lip, rolling the outer edge, or riveting flares over the existing bodywork. Some bolt-on kits for specific platforms minimize metal work, but proper fitment almost always requires shop time. Confirm the installation requirements with your installer before purchasing any kit.

What widebody kits are available for the WRX STI?

The WRX STI has aftermarket widebody options ranging from FRP bolt-on flares ($800–$2,000) to premium kits from Liberty Walk, Rocket Bunny, or Pandem ($3,000–$8,000). The availability and quality of kits depends on the platform's popularity in the tuning community. Use our render tool to see the widebody aesthetic on your car before researching specific kit options.

Can I see what a widebody kit looks like on my WRX STI before buying?

Yes — that's exactly what TunedRides is built for. Upload a photo of your WRX STI and select widebody kit as your style. You get a photoreal AI render of your car with extended fenders, wider track, and full aero in about 30 seconds. Free to try, no account required.

Is a widebody kit worth it on a WRX STI?

If you're building a show car, a dedicated track car, or a car you intend to keep long-term, a widebody kit on the WRX STI is one of the most dramatic transformations available. It narrows your resale audience and requires a significant investment in parts, labor, and paint — use TunedRides to confirm the aesthetic first. Seeing the result before spending $4,000–$12,000 is exactly why the tool exists.

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