Login
Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser
Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser
Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser
 Next

Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser

Marsoni M251S
Sale price$858.48
Pay 4 payments of $214.62 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear DiffuserSKU: RD18SBIMP UPC: 887753487704 Seibon 2015 2021 Subaru WRX STI Carbon Fiber Rear Diffuser Transform the rear end of your 2015 2021 Subaru WRX or STI with the Seibon Carbon RD 18SBIMP rear diffuser. This direct fit component replaces the factory valance for improved downforce and ground effects. Handcrafted from premium carbon fiber, it reduces weight while enhancing stability at high speeds. Key Features Lightweight Construction: Reduces vehicle
Easy Shipping

Quick Dispatch:

Your Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser ships.

Need Help?
Questions about Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Seibon 18-20 Subaru WRX / STI Carbon Fiber Rear Diffuser in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 2008 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Ramon
Phoenix, US
★★★★★ 5
Great addition!
Size: 40 Inch, Color: Rustic Brown, Number of Items: 1
Floating shelf was super easy to install and is a great addition above my window in my office. I used it to put some display pieces my wife wouldn’t allow me to put over our mantle. Very sturdy and looks great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 17, 2025
J
Verified Purchase
Jeff Smecker
Houston, US
★★★★★ 3
Looks Good-Not at all sturdy
Size: 40 Inch, Color: Rustic Brown, Number of Items: 1
Looks good. Not sturdy at all if you want to put any weight on it. It’s purely decorative and is not a functional shelf. I had to use toggle bolts for a hollow wall install. The hardware included was not helpful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
L
Verified Purchase
LAX MOM
Natrona Heights, US
★★★★★ 5
nice
Size: 24 Inch, Color: White, Number of Items: 1
Easy to install and stron enough to hold several work binders and books
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
W
Verified Purchase
Wendy
Pawtucket, US
★★★★★ 5
Nice sturdy shelves
Size: 36 Inch, Color: White, Number of Items: 2
These nice deep floating shelves look perfect in our guest bedroom! Very sturdy and they are able to hold large items.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
P
Verified Purchase
Pam Mitchell
Boise, US
★★★★★ 1
Poor quality product, hardware not appropriate
Size: 24 Inch, Color: Black, Number of Items: 1, Size: 24 Inch, Color: Black, Number of Items: 1
Do not waste your money on these, not as described, very cheap, hardware does not work. Going to have to repair my wall before I can do anything else. Completely unacceptable product. Very frustrating and was not properly represented in the marketing advertising. Do not buy. Would like to return, but waited 3 days to long. If I had opened them immediately I would have seen the poor quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026

recommand products

EASTERN EUROPE. Showing Railways & steamship routes. East sheet 1920 old map
EASTERN EUROPE. Showing Railways & steamship routes. East sheet 1920 old map
15.00
 SCOTLAND WESTERN ISLES. Outer Hebrides. Skye Lewis Uist Rum Eigg Muck 1920 map
SCOTLAND WESTERN ISLES. Outer Hebrides. Skye Lewis Uist Rum Eigg Muck 1920 map
21.00
 SERBIA. Montenegro; Yugoslavia East. inset Belgrade plan. HARMSWORTH 1920 map
SERBIA. Montenegro; Yugoslavia East. inset Belgrade plan. HARMSWORTH 1920 map
25.95
 LATVIA LITHUANIA ESTONIA. Baltic Provinces E Prussia Russia Petrograd 1920 map
LATVIA LITHUANIA ESTONIA. Baltic Provinces E Prussia Russia Petrograd 1920 map
22.00
 IRELAND NORTH EAST. Ulster Antrim Down Londonderry Tyrone Armagh etc 1920 map
IRELAND NORTH EAST. Ulster Antrim Down Londonderry Tyrone Armagh etc 1920 map
16.95