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AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3 | G82/ G83 M4
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AutoTecknic Dry Carbon Versus Rear Diffuser - BMW G80/ G81 M3

ATK-BM-0721
In stock
$895.00
Product Description Refine the rear profile of your G8X with the AutoTecknic Versus Rear Diffuser, engineered in full dry carbon fiber for a sharper, more aggressive finish. Designed to enhance both visual presence and airflow management, the Versus diffuser features a sculpted center fin layout with functional venting for a motorsport-inspired look. Constructed using 100% pre-preg carbon fiber and autoclave-cured for maximum strength and consistency, this diffuser delivers lightweight performance with OEM-level fitment. Key Features 100% Pre-Preg Dry Carbon Fiber Autoclave-cured for superior strength, reduced weight, and consistent weave quality Versus Design with Center Venting Aggressive fin layout enhances rear-end styling while maintaining a clean OEM+ aesthetic High-Gloss UV-Resistant Finish Multi-layer clear coat for long-term durability and fade resistance OEM Fitment Designed to mount directly to factory lower mounting points for a straightforward installation Construction 2x2 Twill (3K) Carbon Fiber Weave Autoclave vacuum-formed process Precision-molded for accurate fitment Reinforced mounting tabs and clip locations Installation Direct replacement for OEM rear diffuser section Utilizes factory mounting locations No modification required Fitment BMW M3 (G80 / G81) BMW M4 (G82 / G83) Notes Fits all model years of G8X M3 / M4 with OEM rear bumper Designed for vehicles retaining the factory...

Product Details

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Refine the rear profile of your G8X with the AutoTecknic Versus Rear Diffuser, engineered in full dry carbon fiber for a sharper, more aggressive finish. Designed to enhance both visual presence and airflow management, the Versus diffuser features a sculpted center fin layout with functional venting for a motorsport-inspired look.

Constructed using 100% pre-preg carbon fiber and autoclave-cured for maximum strength and consistency, this diffuser delivers lightweight performance with OEM-level fitment.

Key Features

  • 100% Pre-Preg Dry Carbon Fiber
    • Autoclave-cured for superior strength, reduced weight, and consistent weave quality
  • Versus Design with Center Venting
    • Aggressive fin layout enhances rear-end styling while maintaining a clean OEM+ aesthetic
  • High-Gloss UV-Resistant Finish
    • Multi-layer clear coat for long-term durability and fade resistance
  • OEM Fitment
    • Designed to mount directly to factory lower mounting points for a straightforward installation

Construction

  • 2x2 Twill (3K) Carbon Fiber Weave
  • Autoclave vacuum-formed process
  • Precision-molded for accurate fitment
  • Reinforced mounting tabs and clip locations

Installation

  • Direct replacement for OEM rear diffuser section
  • Utilizes factory mounting locations
  • No modification required

Fitment

  • BMW M3 (G80 / G81)
  • BMW M4 (G82 / G83)

Notes

  • Fits all model years of G8X M3 / M4 with OEM rear bumper
  • Designed for vehicles retaining the factory exhaust layout

Why Dry Carbon

Pre-preg carbon fiber is widely regarded as the highest-quality construction method, using precisely controlled resin content and autoclave curing to produce a lighter, stronger, and more consistent final product with minimal imperfections.

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To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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