SKU: 55298569416

Flow Designs GT Mustang S550 FN Flow-Lock Rear Diffuser

Sale price$171.00 Regular price$190.00
Save 10%

Pay in installments of $47.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Flow Designs GT Mustang S550 FN Flow-Lock Rear DiffuserSuits 2018+ Ford Mustang GT S550 FN INSTALL DOES NOT REQUIRE REAR BUMPER REMOVAL For rear valance without Flow Lock fins click here. Details Experience Flow Lock rear diffuser for your Mustang S550 FN, sharing the same durability and technology as our renowned WRX, Golf GTI & MK3 Focus RS line up which is trusted by car enthusiasts worldwide. The rear valance and diffuser fins will clear the Mustang S550 FN dual exhaust tips with ease, and rear bumper


Suits 2018+ Ford Mustang GT S550 FN

INSTALL DOES NOT REQUIRE REAR BUMPER REMOVAL

For rear valance without Flow-Lock fins click here.


Details

Experience Flow-Lock rear diffuser for your Mustang S550 FN, sharing the same durability and technology as our renowned WRX, Golf GTI & MK3 Focus RS line up which is trusted by car enthusiasts worldwide. The rear valance and diffuser fins will clear the Mustang S550 FN dual exhaust tips with ease, and rear bumper removal is not necessary for installation of the diffuser. 10 year warranty applies for the rear valance (excludes ABS fins).

The Flow-Lock interlocking system allows for the final assembly of the diffuser fins without tools or fasteners. A simple push and click and the kit is assembled and ready for installation - this means zero exposed hardware giving you the cleanest look for your Mustang S550 FN rear. 

No more L-brackets, no additional exposed hardware and no double-sided tape, experience the Flow-Lock difference today!
 

Valance is installed to the car through bolts and nuts while the Flow-Lock diffuser fins simply click into the valance (once locked into the valance it is secure). It is also possible to install when your car is on the ground.


Kit Includes:

  • Mustang S550 FN rear valance
  • Mustang S550 FN Flow-Lock diffuser fins
  • 2 Flow Designs stickers
  • Fitting kit

Material & Finish:

  • Valance: 10mm thick polyethylene composite, bevelled edges
  • Flow-Lock diffuser fins: 4.5mm thick textured ABS 
  • Valance: Finish available in gloss black, or scratch-resistant textured matte black
  • Flow-Lock diffuser fins: scratch resistant textured ABS plastic
  • CNC engraved logo and features

Install Instructions (PDF)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 55298569416

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
F
Verified Purchase
Frank
Phoenix, US
★★★★★ 4
Salt gets jammed
Color: External Adjustment Silver, Size: Rechargeable
Works like it should! I would give it 5 stars but sometimes the salt gets stuck!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
L
Verified Purchase
Leslie Connie
Lowell, US
★★★★★ 5
Stainless beauty
Color: External Adjustment Silver, Size: Rechargeable
Awesome and easy to use and clean.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
R
Verified Purchase
Renee richison
Los Angeles, US
★★★★★ 5
Circle Joy Electric salt and pepper set
Color: External Adjustment Silver, Size: Rechargeable
This is a wonderful set! It's so nice to just push a button and have your salt or pepper come out perfectly ground. They fill from the top which makes it so easy.The charge last for a few months.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
J
Verified Purchase
Jon
Carnegie, US
★★★★★ 5
Easy to use, charge lasts a while
Color: External Adjustment Silver, Size: Rechargeable
Charge base, fill grinders and use! Been months and no recharge yet. Light and multi grind settings are great features
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
J
Verified Purchase
James
Grantham, US
★★★★★ 4
Grind Away
Color: External Adjustment Silver, Size: Rechargeable
These are great, I really like the adjustable of the grind. The only issue, they can be difficult to use with one hand. They are very smooth and slip out of your hand. It would be nice if they had some texture around the top for grip. Other wise a very good product for the price and works very well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026

recommand products