G80 M3 & G82 M4 LCI vs Pre-LCI: What Changed and What Still Fits
For 2025, BMW updated the G80 M3 and G82/G83 M4. Here's what changed, what stayed the same, how to tell which car you have, and which…
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The Unit 17 blog
Buying guides, fitment advice and build notes for carbon fiber parts on BMW M, Mercedes and Audi.
G80 M3 & G82 M4 Rear Diffusers: D3 vs MP Style vs F1 Brake Light
The carbon rear diffusers, trims and corner pieces we sell for the G80 M3 and G82/G83 M4, compared: what each one covers, which has a brake…
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How to Install a G80 M3 or G82 M4 Grille, Front Lip and Diffuser
How carbon exterior parts go onto a G80 M3 or G82/G83 M4, from the quick rear corners to the bumper-off grille swap: tools, steps, and when…
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Does Your G80 M3 or G82 M4 Have the Front Radar? Grille Radar and Badge Guide
Two things decide which grille your M3 or M4 can take: whether it has the front radar for Active Cruise Control, and how your badge moves…
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G80 M3 & G82 M4 Carbon Grilles: CSL vs GT vs V vs GTS
Every carbon grille we sell for the G80 M3 and G82/G83 M4, side by side: how each style looks on the car, which ones work with…
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G80 M3 & G82 M4 Front Lips: SPL1 vs SPL2 vs CSL vs V3 vs MP
Every carbon front lip we sell for the G80 M3 and G82/G83 M4, compared: which ones replace the factory corner pieces, one-piece vs three-piece, how low…
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Will a Front Lip Scrape on Your G80 M3 or G82 M4?
A front lip becomes the lowest point of your M3 or M4's nose. Here's how low these cars sit, where lips scrape, the habits that prevent…
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Prepreg vs. Wet-Layup Carbon Fiber: What BMW M Owners Should Know
Shop for a front splitter, spoiler, or side skirt for a G80 M3, G82 M4, or G87 M2, and you’ll notice “carbon fiber” gets used like…
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BMW M4 Rear Spoiler Buying Guide: High Kick, Ducktail, and OEM+ Designs Explained
Key Takeaways: High Kick spoilers maximize visual drama and stance. Ducktails offer a subtle, motorsport-inspired silhouette. OEM+ designs enhance BMW’s factory look without overdoing it. Carbon fiber cuts…
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Top Reasons to Install a BMW X3M / X4M Carbon Fiber Front Splitter
It is evident that the S58 engine under the hood is an absolute masterpiece; yet, when you look at the front end, something feels just a…
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