SKU: 84758359560

ECS Tuning Forged Carbon Fibre Rear Diffuser - B8.5 S4 / A4 S-Line

Sale price$633.15 Regular price$703.50
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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For Your Every Summer RSVP, with Code: SUMMER15

Description

ECS Tuning Forged Carbon Fibre Rear Diffuser - B8.5 S4 / A4 S-LineUpgrade your exterior styling with the ECS Tuning Carbon Fibre Rear Diffuser. This diffuser was engineered and designed in house to add a more aggressive appearance to the rear of your vehicle that matches with the factory appeal of the Facelift B8 A4 & S4. The diffuser is crafted of high quality hand laid chopped carbon fibre to achieve it's world class appearance and durability and provides an aggressive and sporty style that's sure to set your

Upgrade your exterior styling with the ECS Tuning Carbon Fibre Rear Diffuser. This diffuser was engineered and designed in-house to add a more aggressive appearance to the rear of your vehicle that matches with the factory appeal of the Facelift B8 A4 & S4. The diffuser is crafted of high quality hand laid chopped carbon fibre to achieve it's world class appearance and durability and provides an aggressive and sporty style that's sure to set your vehicle apart from the rest.

Installs with no drilling, cutting, or modification of any kind required. Simply remove your currently installed valance and install the diffuser using the factory mounting locations and hardware.  

To compliment the look of your new diffuser, check out the ECS Carbon Fibre Trunk Spoiler and Side Blades, only available from ECS Tuning.

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: 84758359560

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4.8 ★★★★★
Based on 21 reviews
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Lainy K.
Birmingham, US
★★★★★ 3
Looks Sharp! Stiff, Balloon Comfort!
Color: Black, Size: XX-Large
I purchased the PJ PAUL JONES Men's Oxford Button-Down Shirt as a gift, and it comes with a mix of strengths and trade-offs. The buttons are plentiful and high quality, and the inclusion of a couple of spare buttons is a thoughtful touch. The color is a deep, rich shade just as I hoped, giving the shirt a sharp, professional appearance. The fabric has a noticeable texture that looks like cotton, but the heavier thread count gives it a sturdier, more rugged feel, (almost outdoorsy) rather than the soft, premium cotton I expected. My biggest concern is that it may feel scratchy against the skin and less comfortable for long hours of wear. The shirt is also quite boxy in shape, with little to no side curve, which limits ease of movement and can cause it to crease or untuck when bending or sitting. Overall, it’s a durable, well-constructed shirt with a polished look, but comfort and fit may be an issue if you prefer softer fabric and a more tailored, flexible cut.
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Reviewed in the United States on December 30, 2025
A
Verified Purchase
Aviator
Natrona Heights, US
★★★★★ 5
Nice quality, true-to-size, great value!
Color: White, Size: Medium
Very nice quality for the price point. 100% satisfied, and will definitely be purchasing more. I found this to be true-to-size > I bought a medium, and I am 6’2’ with a 40” chest 15.5” neck, 30” waist - “athletic” build, and this has a nice, nearly tailored, fit to it. The brown buttons (on the white) are a nice stepped-up touch, which had multiple people ask me where I got my shirt.
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Reviewed in the United States on November 12, 2025
J
Verified Purchase
J. Davis
San Leandro, US
★★★★★ 5
Sharp looking suit!!
Color: Beige, Size: 16
This suit was so sharp on my son! It was comfortable and just the look we wanted. Sizing was true to sizes and the color was just as pictured! Would definitely recommend!!!
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Reviewed in the United States on April 8, 2026
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Verified Purchase
Tangela Scott
Waukegan, US
★★★★★ 2
Orange suit
Does not look like the pic. Color not the same
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Reviewed in the United States on April 19, 2026
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Verified Purchase
Blue Elf
Louisville, US
★★★★★ 5
Great Quality.
Color: Beige, Size: 14, Color: Beige, Size: 14
Bought this for my son to attend a wedding on the beach. It looks very good, the color is beautiful and is true to size. He is 14 so I got size 14. He is 5’7” and weighs about 110 lbs. the pants length was perfect too. Just needs a little ironing.
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Reviewed in the United States on March 21, 2026

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