BMW M3/M4 Type-B Prepreg Carbon Fiber Rear Diffuser Set

BMW M3/M4 Type-B Prepreg Carbon Fiber Rear Diffuser Set

Marsoni

M251S

$666.98

Get it in 3 business days with 1 day shipping. Friday, May 29

BMW M3/M4 Type-B Prepreg Carbon Fiber Rear Diffuser SetBMW M3 G80 G81 RHT Type B Dry Carbon Fiber Diffuser & Rear Splitter. Unique styling body kits with perfect fitment and the best UV protection clear coat that can be used for over 3 years without any reaction. 1 year free warranty. This part cannot be compatible with cars that have OEM auto towbars. Compatible with: G80 M3 Sedan G81 M3 Touring Installation Tutorial: https: youtu. be Qu 6WHdK2x4

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If you aren't changing your own air filters in your vehicle you should be. Air filter swaps are a huge ripoff if you get the dealer to do them. Granted, most maintenance at dealerships is a ripoff BUT it takes all of five minutes if you don't know what you are doing, most of which is watching the youtube video telling you how to do it, and maybe a minute or two if you do know what you are doing. Save yourself some cash.

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Reviewed in the United States on January 23, 2026

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Ruben

Whiting, US

★★★★★ 5

Great alternative to OEM model

Works great for my car. Really didn’t see a difference between these ones and the OEM ones. It provides good value with easy installation.

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Reviewed in the United States on April 5, 2026

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George

Port Orchard, US

★★★★★ 5

Good fit and price for a 2017 Honda Civic

Been using these in my Honda Civic for a while now they work great no complaints

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Reviewed in the United States on April 3, 2026

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Zander

Omaha, US

★★★★★ 5

pretty good for price!

Great item with easy install, drops right in for a perfect fit! the quality is up there for its money, but certainly isn’t going to be your top of the line. however it gets the job done and has a prettt decent air flow for its price!

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Reviewed in the United States on August 13, 2025

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Lexington, US

★★★★★ 4

As expected

Fits perfectly and last long

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Reviewed in the United States on February 15, 2026