Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW Rear Bumper Diffusers

Sort By
Filter By
Return to Top

F8X Turner Carbon Fiber Upper Diffuser

ES#3691433 - 023241TMS01 - F8X Turner Carbon Fiber Upper Diffuser - A necessary addition to any F8X Chassis! - Turner Motorsport - BMW

A necessary addition to any F8X Chassis! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3691433
Mfg#:
023241TMS01
In Stock
ON SALE! SAVE 24%
$726.99

This product was last offered at the strikethrough price on
05-02-2026

$549.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adro Carbon Fiber Rear Diffuser - Toyota GR Supra

ES#4818135 - A18A20-1302 - Adro Carbon Fiber Rear Diffuser - Toyota GR Supra - Enhance your GR Supra's aesthetics with the ADRO carbon fiber rear diffuser - ADRO INC. - BMW

Enhance your GR Supra's aesthetics with the ADRO carbon fiber rear diffuser affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ADRO INC. - Corporate Logo
ES#:
4818135
Mfg#:
A18A20-1302
Ships on Jul 30, 2026
$1690.00 USD

Adro V1 Carbon Fiber Diffuser - G87 M2

ES#5424612 - A14A90-1301 - Adro V1 Carbon Fiber Diffuser - G87 M2 - Handcrafted pre-preg carbon diffuser delivering OEM fitment, aggressive styling, and functional aero. - ADRO INC. - BMW

Handcrafted pre-preg carbon diffuser delivering OEM fitment, aggressive styling, and functional aero. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ADRO INC. - Corporate Logo
ES#:
5424612
Mfg#:
A14A90-1301
Ships in 3 Business Days
$2490.00 USD

E46 M3 CSL Carbon Fiber Diffuser

Authentic M3 CSL carbon fiber rear diffuser affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine European BMW - Corporate Logo
ES#:
2622923
Mfg#:
51127897863
Ships on Jun 30, 2026
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$2516.99

This product was last offered at the strikethrough price on
06-03-2026

$2443.99 USD
This product is lifetime replacement eligible Lifetime Replacement

E36 M3 Turner Motorsport ABS Diffuser - Textured Matte Black

ES#4491327 - 006706LA10KT - E36 M3 Turner Motorsport ABS Diffuser - Textured Matte Black - Add aggressive styling to your rear end with Turner In-House Engineered ABS Rear Diffuser! Includes spats! - Turner Motorsport - BMW

Add aggressive styling to your rear end with Turner In-House Engineered ABS Rear Diffuser! Includes spats! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with M3 style rear bumpers only.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4491327
Mfg#:
006706LA10KT
In Stock
ON SALE! SAVE 10%
$329.99

This product was last offered at the strikethrough price on
05-02-2026

$296.63 USD
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Carbon Fiber Diffuser - F87 M2

ES#4056534 - 028530TMS01 - Turner Motorsport Carbon Fiber Diffuser - F87 M2 - Complete the perfect look with Turner Motorsport's gloss carbon rear diffuser for you F87. This rear diffuser mounts in the factory location with perfect OEM fitment. - Turner Motorsport - BMW

Complete the perfect look with Turner Motorsport's gloss carbon rear diffuser for you F87. This rear diffuser mounts in the factory location with perfect OEM fitment. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4056534
Mfg#:
028530TMS01
In Stock
ON SALE! SAVE 22%
$704.99

This product was last offered at the strikethrough price on
05-02-2026

$549.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

F82 M4 Carbon Diffuser & Carbon High Kick Trunk Spoiler

ES#4751380 - 024594TMS01EBKT - F82 M4 Carbon Diffuser & Carbon High Kick Trunk Spoiler - Gloss Carbon Styling package includes both the rear diffuser as well as the carbon trunk spoiler. Give your vehicle a full vehicle facelift! - Enthusiast Bundles - BMW

Gloss Carbon Styling package includes both the rear diffuser as well as the carbon trunk spoiler. Give your vehicle a full vehicle facelift! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751380
Mfg#:
024594TMS01EBKT
Ships on Jul 24, 2026
Auto Notify
$1185.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Street Flow Rear Diffuser & ABS High-Kick Trunk Spoiler

ES#4876625 - 047616LA01EBKT - E46 M3 Street Flow Rear Diffuser & ABS High-Kick Trunk Spoiler - Add aggressive styling to the rear end of your M3! - Enthusiast Bundles - BMW

Add aggressive styling to the rear end of your M3! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876625
Mfg#:
047616LA01EBKT
Ships in 6 Business Days
ON SALE! SAVE 35%
$764.98

This product was last offered at the strikethrough price on
05-05-2026

$499.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E36 M3 Street Flow Rear Diffuser & ABS Front Lip

ES#4876627 - 047602LA01EBKT - E36 M3 Street Flow Rear Diffuser & ABS Front Lip - Add aggressive styling to the front and rear of your E36! - Enthusiast Bundles - BMW

Add aggressive styling to the front and rear of your E36! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876627
Mfg#:
047602LA01EBKT
In Stock
ON SALE! SAVE 38%
$762.18

This product was last offered at the strikethrough price on
05-05-2026

$469.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Turner Motorsport ABS Diffuser

ES#4140246 - 028979TMS01 - E46 M3 Turner Motorsport ABS Diffuser - Add aggressive styling to your rear end with Turner In-House Engineered ABS Rear Diffuser! - Turner Motorsport - BMW

Add aggressive styling to your rear end with Turner In-House Engineered ABS Rear Diffuser! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4140246
Mfg#:
028979TMS01
In Stock
ON SALE! SAVE 24%
$325.99

This product was last offered at the strikethrough price on
05-02-2026

$249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ADRO Carbon Fiber Rear Diffuser

ES#4779985 - A14A50-1301 - ADRO Carbon Fiber Rear Diffuser - Add ADRO's Meticulously Designed Carbon Diffuser to Your G80 or G82! - ADRO INC. - BMW

Add ADRO's Meticulously Designed Carbon Diffuser to Your G80 or G82! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ADRO INC. - Corporate Logo
ES#:
4779985
Mfg#:
A14A50-1301
Ships in 3 Business Days
$2950.00 USD

Carbon Rear Diffuser

Make your M8's rear end look even more aggressive! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
3D Design - Corporate Logo
ES#:
4446137
Mfg#:
3108-29311
Ships in 3 Business Days
$2795.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E36 M3 Rear Bumper Diffuser

ES#75926 - 51122233364 - E36 M3 Rear Bumper Diffuser - Replacement diffuser for rear bumper - Genuine BMW - BMW

Replacement diffuser for rear bumper affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles fitted with M-Technic Rear Bumper

Brand:
Genuine BMW - Corporate Logo
ES#:
75926
Mfg#:
51122233364
Ships in 1 day
$214.95

This product was last offered at the strikethrough price on
01-07-2026

$214.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ADRO F87 M2 Carbon Rear Diffuser

ES#4778619 - A14A30-1301 - ADRO F87 M2 Carbon Rear Diffuser - Add a Carbon Fiber Diffuser to The Back of Your M2! - ADRO INC. - BMW

Add a Carbon Fiber Diffuser to The Back of Your M2! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ADRO INC. - Corporate Logo
ES#:
4778619
Mfg#:
A14A30-1301
Ships in 3 Business Days
$1290.00 USD

Evaero Rear Carbon Fiber Diffuser With Winglets - F8X M3 M4

Improve your BMW M3/M4's look with this simple addition! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Evaero
ES#:
4390821
Mfg#:
EVA-F8XM-DIF
Ships in 3 Business Days
$2505.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Rear Diffuser

Make your M5's rear end look even more aggressive! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
3D Design - Corporate Logo
ES#:
4446001
Mfg#:
3108-29011
Ships in 3 Business Days
$2395.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Other BMW Rear Bumper Diffusers

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings