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TUNED RIDES

GMC · Widebody Kit

GMC Sierra Widebody Kit, AI Render

Render your car with a widebody — fender flares, wider track, aggressive rear haunches. Preview it on your own Sierra before you spend a thing.

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Widebody Kit AI render example — upload your Sierra to see yoursWidebody Kit example

The GMC Sierra Widebody Kit, Explained

Widebody culture has one core promise, and on the GMC Sierra it delivers: add 30–80mm of flare per side, fill the new arches with properly wider wheels, and the whole car changes character — lower-looking, wider-tracked, planted. What separates the builds people photograph from the ones they walk past is integration: on the good ones the flares read as part of the Sierra's design, as if a factory homologation special, rather than parts bolted over it.

What a Sierra Widebody Kit Actually Costs

Budget a well-executed Sierra widebody build at $4,000–$12,000 all-in, and work backwards from there. The kit itself is only part of that: entry-level FRP parts start around $1,500–$3,000, established names like Liberty Walk, Rocket Bunny, and Pandem sit in the $3,000–$8,000 band, and carbon fibre or custom fabrication can reach $12,000–$20,000 before anything is fitted. The remaining $2,500–$5,000 goes on the work that makes or breaks the result — installation, body prep, gap filling, and paint.

Visualise your Sierra before booking the shop

A widebody is the least reversible visual modification you can make to a Sierra — fenders get cut, so the time to discover the look isn't for you is before the build, not after. That is the render's job: your actual Sierra, your colour, flared and planted, in about 30 seconds, so the GMC build you pay for is one you've already seen.

Upload your Sierra photo, free →

Rendering a Widebody Kit on Your Sierra: Three Steps

  1. 1
    Upload a photo of your Sierra. Any sharp, well-lit shot does it — side-on favours bodywork modifications like widebody kits. JPG or PNG, up to 10MB.
  2. 2
    Select Widebody Kit as your style. Our AI reads your Sierra'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 render. Results in about 30 seconds. Free tier includes a watermarked version. Pro ($14/mo or $69/yr) gives 250 HD renders a month with no watermark. Perfect for sharing with shops or builders.

FAQ: Widebody Kit on the Sierra

Do I need to cut my Sierra'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.

How long does a widebody install take on a Sierra?

Plan for a multi-week shop job, not a weekend. The kit itself arrives fast — it's the test fitting, fender modification, gap filling, body prep, and paint that dominate the timeline, and rushing any of those stages is what separates a factory-looking result from an obvious bolt-on. Ask your shop for their timeline before committing.

Is a widebody kit worth it on a Sierra?

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 Sierra 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.

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

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

How much does a widebody kit cost for a Sierra?

A widebody kit for a GMC Sierra 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.

Briefing a builder?

HD, watermark-free renders your installer can build from

A GMC Sierra widebody build runs $4,000–$12,000. Upgrade to Pro for a 4K, installer-ready render your shop can build straight from. Works out to $5.75/mo annually.

GMC Sierra: other render styles

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