If you want to improve the sound of this car, in addition to an intake I strongly recommend a downpipe, specifically the TSP one because it doesn't require a tune. I'm running the DP and a front pipe and the engine sounds significantly better than when I just had the front pipe on for several months (front pipe alone added only a nominal amount of low end to the exhaust tone). While the K20C is an amazing engine and produces a lot of power, it is not the best sounding in my opinion but the DP gives the exhaust a much more dynamic tone. You can actually hear the engine singing up top high in the rev range while also giving low end growl. The car sounds much more mechanical especially in the Sport settings, but gets back to stock levels of quiet in Comfort. And if you want your car sounding more mechanical in all aspects, I would also suggest looking into the Hybrid shifter. The shifts feel and sound more mechanical in a good way. Not like a gated Ferrari or anything but it's an audible improvement.
