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 fucked 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.