What Is a Widebody Kit? A Beginner's Guide
A widebody kit widens a car's arches so wider wheels and tires will fit. Here's what is in one, what gets cut, and how to tell if a wide build suits your car.
Technical docket
Material, widebody, vehicle-programme, aero part, custom build, and dealer guidance for shops that need a practical answer before sending a CMST inquiry.

Read first note
Going wide on a G82 M4 is bodywork, not styling. What a widebody kit contains, what gets cut, what it costs, and the four decisions to settle before you order.
Choose a route
What carbon is worth, how to care for it, and how long it lasts — the material questions buyers ask before ordering.
1 note02Widebody GuideWhat a widebody kit is, what it costs, and how to choose one — written for shops and owners weighing the build.
1 note03Vehicle GuidesA buyer-side selection guide for every vehicle programme CMST builds parts for.
1 note04Aero Parts GuideWhat each aero part does, how they compare, and how to fit and care for them.
1 note05Custom AeroOne-off programmes, in-house tooling, and the manufacturing steps behind a custom carbon build.
0 notes06Dealer PartnershipWhy buy direct from the factory, and how distributor and shop partnerships with CMST work.
0 notesLatest notes
A widebody kit widens a car's arches so wider wheels and tires will fit. Here's what is in one, what gets cut, and how to tell if a wide build suits your car.
Carbon fiber or fiberglass for a body kit? Part by part: carbon earns its price on hoods, wings and diffusers; FRP and molded plastic win on bumpers and arches.
Overfenders and fender flares are one part under two names. What each term means, the three ways to cover a wider wheel, and how to measure before you buy.