Home » Osir Design - Step A4 B8 - Carbon Fiber - Audi A4 / A4 S-Line / S4 / RS4 B8/B8.5

Osir Design - Step A4 B8 - Carbon Fiber - Audi A4 / A4 S-Line / S4 / RS4 B8/B8.5

  • Vendor Osir Design
  • Part # A4B8-STEP-CF
$309.89
$414.99 Sale $309.89
Only 1 left
Low inventory - Hurry up!
Choose Finish
Secure Checkout

100% Secure SSL Encryption to Protect Your Info

Trusted Payment Options
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

We accept Visa, MasterCard, PayPal, Apple Pay & More

Hassle-Free 30-Day Returns

Return unopened items within 30 days for a refund or exchange.

Description Fitment Guide

OSIR Design replacement door sills for the 2008-2014 Audi A4, A4 S-Line, S4 and RS4 (B8 / B8.5 pre-facelift and facelift). Vacuum infused premium carbon fiber with a high gloss finish. Set of 4.

Let customers speak for us

from 66 reviews
(Go Fast Bits) diverter valve plus install

Installed this GFB diverter valve to eliminate the OEM plastic one all together that are prone to failing. I also spent the little more instead of rebuilding the bottom of the OEM that GFB offers but doesn’t clear all cars. BOV option (any brand) can cause car to have lights & running rich issues if not tuned asap so this was the best option for me to pair with my neuspeed intake. Plug and play harness & works great ! Can tell has less slop from day to day traffic & daily driving.

Anonymous
Good Intake for the price !

This intake sounds amazing at low rpms ! Definitely using some more gas cause it’s hard to keep foot off the throttle lol. Was a tight fit on an 2014 Audi TT Quattro S Line. Engine cover does touch against the intake tubing but fits overall pretty well.

Joey
2004 Audi TT

The side markers were very nice upgrade’s. I love them 😍

esimms
Forge intake pipe

Some slight modifications to the car and the cold air heat shield was needed but otherwise it fit great. Can really hear her breath now!

Shea Chris
Very nice!

Love my new side markers - very clean looking and unique in how they flash when turning left or right. The only suggestion I’d make is provide instructions for both installing them and for being very careful with the wire once you disconnect the old light housing Left side went in ok, but I lost the right side into the fender black hole which required me to remove the tire and unscrew most of the lining so I could find the wire!

Jon W.

Replaced my failing puddle lights with these. These were there best price I could find. They look great.

Glenn

The products was great 👍

Ketil Aalberg

They where easy to install and I hope they will do the work.😊

Ketil Aalberg
Cool lights!

They look great, give the car a quick update, are truly easy to install and operate perfectly.

Jason Rulo
Perfect fit

Exactly what I needed

Jamile RISHI

Great product! Fitment is A+

Juan
Black MK1 Audi TT Grill / Rings

Looks much better than the factory stock grill. Perfect fit. Purchased two sets just to have a spare in case something happens to the first one.

Kevin Walker
225bhp 01 roadster

Impressed, perfect fit install took 5 minutes and turbo lag is way less and the sound with forge devertor valve is awesome 👌

Bobby Fillers

Works well

Mr b Dunn-dobrinski

Quality is superior and fit and performance are excellent

Lamon