See all Body | Aero Parts products
Product thumb
2021-2022 BMW 4 Series G22 Duraflex Avast Rear Diffuser - 3 Piece
$416.00

2021-2022 BMW 4 Series G22 Duraflex Avast Rear Diffuser - 3 Piece | 118421

Duraflex: Performance Meets Style in 118421

Introducing the 2021-2022 BMW 4 Series G22 Duraflex Avast Rear Diffuser - 3 Piece, part number 118421 . This premium rear diffuser is engineered to enhance your vehicle's aerodynamics while adding a touch of aggressive styling that is sure to turn heads. Crafted from high-quality fiberglass, the Duraflex diffuser is lightweight yet durable, ensuring it can withstand the rigors of both street and track use.

Performance Benefits of the 118421 and 2021-2022 BMW 4 Series G22 Duraflex Avast Rear Diffuser - 3 Piece

The 118421 diffuser is designed to improve airflow under the vehicle, reducing drag and increasing downforce. This results in enhanced stability and handling, particularly at high speeds. The three-piece construction allows for easy installation and customization, making it a perfect addition for enthusiasts looking to elevate their BMW's performance.

Why Choose Duraflex for Your 118421 Upgrade?

Duraflex is synonymous with quality and innovation in the automotive aftermarket. The 118421 diffuser exemplifies this commitment, featuring a sleek design that integrates seamlessly with the BMW 4 Series G22's aesthetics. Its unique finish not only enhances the car's appearance but also provides a robust layer of protection against road debris and environmental factors.

Technical Details of the 2021-2022 BMW 4 Series G22 Duraflex Avast Rear Diffuser - 3 Piece (118421)

  • Material: High-quality fiberglass for durability and lightweight performance.
  • Installation: Easy bolt-on installation with no modifications required.
  • Compatibility: Specifically designed for 2021-2022 BMW 4 Series G22 models.
  • Finish: Available in a smooth gel coat finish, ready for paint or installation as is.

Upgrade your 2021-2022 BMW 4 Series with the Duraflex Avast Rear Diffuser - 3 Piece (part number 118421) and experience the perfect blend of performance and aesthetics. Whether you're hitting the track or cruising the streets, this diffuser is your ticket to a more dynamic driving experience.

Notes:

  • Due to the nature of fiberglass, we do not guarantee perfect fitment. All our products are hand made and minor differences can occur from part to part.
  • We do however, guarantee satisfaction on our products, so for any reason you are not satisfied by what you ordered, simply return it, and we will refund you the product price in full less shipping and handling.
  • By ordering this item you hereby confirm that you understand that installing and painting aerodynamics products can be difficult.
  • Paint and installation process will include but are not limited to sanding, shaving, cutting and filling.
  • Extra fees will be incurred for proper fit and finish of all fiberglass products.
  • Refunds will not be issued due to minor fitment issues.
  • Major fitment issues will be reviewed for warranty and will require photos of test fitment.
  • All parts are deemed for off-road and show car use only.
F.A.Q.
  • Please contact us for accurate shipping costs for orders shipping to Alaksa, Hawaii, Puerto Rico, International
  • If your product arrives and does not fit as advertised?
    • Complete a the Vivid Racing Return Form
    • Provide us with a brief description of the issues encountered
    • Provide Images and/or Detailed Video with the following:
      1. Test fitment of the product on the vehicle
      2. Wide angle images
      3. Detailed images showing the issues
  • If your product arrives in visibly damaged packaging?
    • Accept the delivery and have the Shipper note "DAMAGE" on the Proof of Delivery (POD)
    • Complete the Shipping Damage Claim Form
    • Provide Images and/or Detailed Video with the following:
      1. Images of all sides of the box as well as the packing materials within the box
      2. Images of the damage to the items
      3. Images of the label on the box
  • If your product arrives in good packaging but upon opening the item is damaged?
    • Freight Shipments:
      1. Delivery Drivers will wait for customers to inspect contents of shipment.
      2. Complete the Shipping Damage Claim Form
      3. If damage is found provide us with detailed images of the issues
        1. Images of all sides of the box as well as the packing materials within the box
        2. Images of the damage to the items
        3. Images of the label on the box
    • Standard Shipments:
      1. Complete the Shipping Damage Claim Form
      2. Provide Images and/or Detailed Video with the following:
        1. Images of all sides of the box as well as the packing materials within the box
        2. Images of the damage to the items
        3. Images of the label on the box
  • Want to Returns for Reasons other than Damage?
    • Complete a the Vivid Racing Return Form
    • Return Period:
      1. 30 Days - No Restock Fee
      2. 60 Days - 25% Restock Fee
      3. Over 60 Days - Returns NOT Accepted
  • You received wrong item in shipment.
    • Complete a the Vivid Racing Return Form
    • Provide Images of the Following:
      1. Wide angle images of the items received
      2. Image of the part label on the item received
      3. Image of label on box (BOL)
      4. Image of 4 digit # handwritten on box in Black

Other Part Numbers:
Duraflex #B0CL8HH2DV

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Duraflex has revolutionized the fiberglass marketing with their aerodynamics. Duraflex combines fiberglass, plastic, and flex resins to obtain its unique features. Because of these features, Duraflex technology obtains a much higher durability rate than the average fiberglass product, resulting in reduced shipping damages up to 75%. This revolutionary product allows you the consumer to receive a premium fiberglass product at an affordable prices.
You're seeing this because you're logged into an employee account or you're accessing the site through an internal IP address. This information is not normally visible.
Things
Sale price None
Wholesale price $319.68
Shipping Weight: 150.00
Length: ?
Width: ?
Height: ?
Zone Name Flat Rate
Arizona $56.00
US-Only $56.00
USA-West-Coast $56.00
USA-East-Coast $56.00
USA-Mid-West $56.00
Canada $101.00
Product Added At Monday 09 October, 2023
Product Modified At Thursday 01 May, 2025
Imported By ETLOverride
Last Edited By kathI@vividracing.com
View In Admin
Vendors
Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
Vendor Inv Cost Retail Jobber MAP Core Updated
Extreme Dimensions $255.75 $521.00 ? $416.00 ? 2025-05-01 12:11:55


Check out these other great products