Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 18 - Jun 23
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Description
Mishimoto 15-20 BMW F80 M3/M4 Skid Plate Replacement DiffuserDesigned for use with 2015 2020 BMW F80 M3 M4 Skid Plate (HYPERLINK TO MMSD F80 15), this specially designed diffuser creates a low pressure zone behind the oil cooler to evacuate air for improved cooling capabilities. The diffuser is also easily removable for when more ground clearance is needed. Backed by Mishimoto Lifetime Warranty. This Part Fits: Year Make Model Submodel 2015 2018 BMW M3 Base 2015 2020 BMW M4 Base 2019 2020 BMW M4 CS 2016 BMW M4
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- Free Standard Shipping on $100+ Orders to the USA.
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 1207 reviews
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Product Reviews
★★★★★ 5
Used it on HVAC ductwork did its job and stuck well
Model: 197mil 31 sqft Car Sound Deadening Mat
There was a lot of material in here for the money, so a decent value, I used it for some extra sound deadening on the ductwork in my house before finishing the basement, seems to help cut down the echoes coming through the ductwork. Overall the product was good had a few pieces where the sticky tore off the foam and stuck to the paper backing but all in all no complaints.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Exactly as described!! Easy installation.
Model: 197mil 31 sqft Car Sound Deadening Mat
Easily installed. Cut with regular scissors. Made a huge difference in interior noise.
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Reviewed in the United States on May 31, 2026
★★★★★ 4
A worthwhile addition to just butyl itself.
Model: 197mil 31 sqft Car Sound Deadening Mat
I used this as a topper to butyl sound deadening material on the floor and side panels and am very pleased. It was generally easy to use. It is very sticky and cannot be easily repositioned as the foam will separate from the sticky side if you try, but its not a big deal. I have yet to run the car but the panels are much quieter when tapped on vs just the butyl alone, and this stuff weighs almost nothing.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Good deadening
Model: 197mil 31 sqft Car Sound Deadening Mat
This sound deadening works well and has good adhesion .
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Easy to install and great value.
Model: 197mil 31 sqft Car Sound Deadening Mat
Very easy to cut and install with the rollers I bought separately. It adheres well even though I was installing it when the weather was closer to 40-50 degrees. Definitely helps to deaden the sound from the bare sheet metal.
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Reviewed in the United States on April 2, 2026
