SKU: 75959953613

Flow Designs i30N Fastback PD Flow-Lock Rear Diffuser

Sale price$157.50 Regular price$175.00
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Flow Designs i30N Fastback PD Flow-Lock Rear DiffuserSuits i30N Fastback PD model INSTALL DOES NOT REQUIRE REAR BUMPER REMOVAL Details Experience Flow Lock rear diffuser for your i30N Fastback, 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 i30N dual exhaust tips with ease, and rear bumper removal is not necessary for installation of the diffuser. 10 year


Suits i30N Fastback PD model

INSTALL DOES NOT REQUIRE REAR BUMPER REMOVAL




Details

Experience Flow-Lock rear diffuser for your i30N Fastback, 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 i30N 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 i30N Fastback rear. Front lip splitter is also available for the i30N Fastback.

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

Pre-assembled rear diffuser Aerospacers are bolted down perpendicularly to create a brace that reinforces the rear valance and evenly spreads the load from impacts across the surface. It also allows the diffuser to follow the body kit contour to keep it flat and level.

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:

  • i30N Fastback PD Flow-Lock rear diffuser
  • 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: 75959953613

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4.6 ★★★★★
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Daniel
Birmingham, US
★★★★★ 5
Last pair lasted 6 years - Round 2!
Color: Black Leather/Black, Size: 9.5, Color: Black Leather/Black, Size: 9.5
Last pair lasted 6 years. Super comfortable and perfect for work business attire. Went on walking breaks every day - feels like you’re wearing a good pair of walking shoes.
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Reviewed in the United States on June 1, 2026
D
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Donald Rivera
Massapequa, US
★★★★★ 5
Comfort with Style
Color: British Tan/Java, Size: 11
Very comfortable. Fits well. Very nice design.
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Reviewed in the United States on April 14, 2026
J
Verified Purchase
jonathan
New York, US
★★★★★ 4
Good, but you sacrifice a few things in favor of style
Color: Black Leather/Black, Size: 10, Color: Black Leather/Black, Size: 10
It’s much better than other shoes out there, but the design is slightly confusing. The first thing you have to know is that the shoe won’t be mind blowingly soft, but it is around as comfortable as standing on something like vans shoes. The holes on top are both a plus and a minus, when you step in a puddle, your feet get instantly soaked, but just by walking around for a bit, they dry up again. Then these holes reduce the structural integrity of the shoe, so I expect the top to be the first part of the shoe that deteriorates, when usually for all my other shoes, it’s the sole that falls off first. With the holes, you can’t shine them the traditional way, you have to be more careful as you might get goo into the inside fiber. Finally you can’t run in these, they’re larger than your foot which is quite comfortable while just standing or walking, but I’m sure they’ll tear if you don’t watch your footing. If all that is okay with you, You’ll get quite a few compliments on it as you walk around, because these are beautiful and excellent as a dress shoe/loafer hybrid
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Reviewed in the United States on September 11, 2025
E
Verified Purchase
Emma
Omaha, US
★★★★★ 5
Great gift for any guy!
Color: Black Leather/Black, Size: 12
These are one of 2 pairs of work shoes my husband will wear, the other one is the same shoe in brown. He says they’re the comfiest pair of dress shoes he’s ever had and the quality and ease of cleaning is incredible. They’ve lasted him years now so I’d say they’re well worth the money.
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Reviewed in the United States on April 7, 2026
W
Verified Purchase
warren colby
West Palm Beach, US
★★★★★ 5
Fit like a glove
Color: Black Leather/Black, Size: 12
I saw somebody wearing these a couple years ago, and I've been looking for him for a while. I really like them.They're very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026

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