Well I'm going to be honest, the custom exhaust on the Q5 isn't what we are after. While it has gotten louder and the 4in tips look so much better, it just doesn't have the volume plus tone we wanted. And I know the original idea include a xpipe to replace the center muffler, but I'm a little annoyed by the very slight drone this setup has introduced when you are going up hill doing 65mph+ with just the rear mufflers replaced. I'm going to be honest, this is a very light drone, and most people likely would not even classify it as such, but as this is the family car it just kind of annoys me. Where we live just happens to be hilly and we travel at that speed for a good distance to and from work. My wife isn't bothered by it at all, but I'm the guy that will stop a road trip if something is rattling in the trunk 5mins from our destination. What I will say is that this setup give the Q5 a nice presence with the low refine growl that the stock very much lacked but really only at idle. No rasp, but it just still sounds too stock'ish at wot. If I'm going to have a little drone, I want the volume and tone that make you happy with the sound of the car. This setup just leave me feeling like it is missing something. And I'm sure the xpipe in the center muffler would fix it, but I just don't want to do any more customizations as I'm guessing with my money. I've done enough tweaking with exhaust on the S4, so I rather go with a known system that has tons of feedback and sound samples to hear.
My options are going Milltek and get a SQ5 diffuser or go with a AWE Tuning setup without changing the diffuser. Either way, it's expensive, but I know drone won't be a issue, but if it is, at least I know what the tone and volume will be like. There is no surprise with those setups as you got tons of examples to listen from. The wife likes the quad exhaust option if we went Milltek, while I like the more stealthy dual tip. That said, we found a dealer selling a new kit at a discount. As it is built to order we got to wait until mid April before it ships. For now you all will just have to wait and see which one we went with.
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