So glad it's not a cover
“I'm so glad a full valance replacement and not just a cover. The direct fitment is perfect.”
Product details
Enhance the timeless look of your B5 Audi with a premium rear diffuser designed to complement its classic lines. Crafted from high-quality Japanese twill weave carbon fiber, it delivers a refined yet aggressive upgrade to the rear profile.
A detail worth getting right
MADE FOR
YOUR DRIVE.
Euro Impulse / Carbon fiber
- 01 Platform / chassis
- B5
- 02 Material / options
- Carbon fiber
Enhance the timeless look of your B5 Audi with a premium rear diffuser designed to complement its classic lines. Crafted from high-quality Japanese twill weave carbon fiber, it delivers a refined yet aggressive upgrade to the rear profile.
Premium Construction
Designed in-house for perfect OEM fitment and built using authentic twill weave carbon fiber for durability, lightweight performance, and a true motorsport aesthetic.
Direct Fitment Installation
Fits 2000+ models as a direct replacement for the factory valance. Simply unclip the OEM valance and install the diffuser—no additional tools or hardware needed.
THIS ITEM IS IN STOCK AND SHIPS WITHIN 1-3 BUSINESS DAYS
Euro Impulse. Worldwide.
- Customers helped
- 3,782
- Countries shipped to
- 35+
- Established
- 2016
- Made and assembled in the
- USA
From the driver’s seat
DRIVER’S VERDICTS.
15 published reviews of this product, three per page. Swipe or use the arrows to browse.
Refined but still aggressive
“This diffuser is the perfect refined yet aggressive upgrade. It looks high-end and sporty.”
Authentic twill weave
“The authentic twill weave carbon fiber looks amazing. So much better than the faded OEM plastic.”
A refined yet aggressive upgrade
“the perfect refined yet aggressive upgrade for the B5. It's not over-the-top, just right.”
A true direct replacement for my 2001 s4
“This was a 100% direct replacement for the factory valance on my 2001 S4. It fit perfectly.”
A huge upgrade over the stock valance
“a huge upgrade over the stock plastic valance. It gives the rear a refined yet aggressive look.”
A huge visual upgrade for the b5
“a huge visual upgrade for the B5 platform. It completely enhances the timeless look of the car.”
Designed in-house and it shows
“The in-house design is obvious. It complements the classic lines of the B5 perfectly.”
Lightweight performance you can feel
“This part is made from authentic twill weave carbon fiber, so it has that lightweight performance and durability.”
, a quality diffuser for the b5
“It's hard to find good parts for the B5. This diffuser is high-quality and designed in-house specifically for this car.”
Unclipped the old, popped this one in
“The installation was a breeze. I just had to unclip the OEM valance and install the diffuser. It took me 15 minutes.”
Complements the b5's classic lines
“This diffuser really complements the classic lines of the B5. It doesn't look out of place at all.”
In-house design is flawless
“The in-house design is flawless. It fits my 2001 S4 with perfect OEM fitment.”
Carbon weave is stunning
“The Japanese twill weave carbon fiber is stunning. The quality is top-notch.”
That japanese twill weave is perfect
“The high-quality Japanese twill weave carbon fiber is flawless. The weave is perfect and looks amazing.”
A little guidance goes a long way
THE RIGHT PART.
THE RIGHT SUPPORT.
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