Enhance the rear styling and aerodynamic performance of your BMW G80 M3, G82 M4, or G83 M4 Convertible with this premium Carbon Fiber Rear Diffuser. Designed to seamlessly integrate with the bold lines of your vehicle, this diffuser adds an aggressive, race-inspired aesthetic while improving airflow and rear-end stability. Crafted from high-quality carbon fiber, it offers lightweight durability and a sleek high-gloss finish for a premium upgrade.
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Shipping Information for Performance Parts
We proudly ship parts worldwide! All orders are processed Monday through Friday. Please allow 1-3 business days for order processing before shipment. We do not ship on weekends or public holidays.
| Estimated Shipping Times: | |
| U.S. & Canada: | 7-10 business days |
| International: | 10-30 business days (varies by location and customs processing) |
| Larger or Oversized Items: | May take longer due to handling, packaging, and freight requirements |
Shipping times may be affected by product availability, high demand, holidays, or unforeseen circumstances. For order updates, contact us at info@eguysperformance.com or DM us on Instagram @eguysperformance with your order number.
| Shipping Rates: | Calculated at checkout based on location and order weight |
| Customs & Import Taxes: | International orders may incur fees, duties, and taxes determined by local customs offices. These charges are the buyer’s responsibility. We are not liable for customs delays. |
What Does the E Guys Performance Lifetime Warranty Cover?
Our Lifetime Warranty is designed to give you peace of mind. Here’s what’s included:
| Available to the Original Purchaser: | This warranty applies exclusively to the original purchaser of the product. Coverage is valid for purchases made directly from E Guys Performance or through an authorized dealer. |
| Manufacturer Defects: | We cover defects in materials or workmanship. If a product fails due to a manufacturing issue, we will repair or replace it at no cost. |
| Shipping Costs for Warranty Claims: | We cover shipping costs for replacement parts on approved warranty claims, so you won’t incur additional fees. |
What Isn’t Covered?
| Improper Use or Installation: | Damage from incorrect installation, misuse, accidents, or normal wear and tear is not covered. |
| Modifications: | Any modifications made to the product will void the warranty. |
| Intended Use: | Products must be used as intended for the warranty to remain valid. |
