Wooooooo just got back from testing my car post Carbonio install - my first mod on the A4! Gave it a good ragging around and nothings exploded or caught fire which is good. No engine warning lights, over heating, dodgy smells. The only problem I have is my right indicator now blinks at double the speed since the installation - I havnt had chance to check it out but I've been told it might be one of the bulbs? - We did have to remove the right hand front light cluster to get decent access to a clip... No noticeable gains performance wise really, maybe slightly more consistant and responsive while pulling. The most noticeable difference is the sound, a nice induction note (everything else is currently stock) and when you lift off the gas a wonderfull woooooooooosh sound is released, I was grining like a mofo, such a difference just makes the car more fun to drive! Complaints! the website says it should take about an hour, it took us about 3 hours - that was me (mechanically retarded) my girlfriends dad (been a mechanic all his life on bikes, cars, trucks) and my mate who is into modding cars. The instructions are **** - bad pictures and there seems to be a few diff layouts of the engine bay as certain things wernt labled right or came as expected. A lot of the time it felt like the manual was written before the product was completed as there are a few obvious changes. The biggest problem was fitting the stock air scoop to the front of the carbon fiber intake at the end - its a slightly different shape and took some butchering and fairy liquid to fit. in the end we wrapped it in electrical tape just to make sure theres a good seal (pictured). Apart from that it wasnt too bad just a lot of messing about trying to access clips and line it up properly to screw it in. Put it this way I'm ****** when it comes to removing it lol. Will have to get some new screws. Also one of the air pipes they dont provide a replacement clip for so its just stuck on with a rubber seal for the moment (solid as though so i think it will be ok) - also pictured. ^ Finished result (**** quality sorry) ^^ sealed with leccy tape! ^ missing clip thing I was glad I had an experienced chap there as I wouldnt of been able to do it on my own. Am happy with the results though and should sound even nicer with a remap next month and a new DV. Just thought I'd share my experience incase anyones interested.