I had purchased a 2010 Audi S5 V8 6spd manual car, custom painted Daytona Grey with Red Interior. Once owned I ordered a Fast Intentions Exhaust Resonated but would later de-resonate it to enhance the sound. This was probably one of my favorite cars and I regret selling it. Here are some videos of the car. The FI non-res made the car so much more enjoyable and I know that 4.2V8 turned heads and I loved driving it every day I was able to. With only the exhaust installed it was faster than a supercharged B8/B8.5 S4/S5 by a tick or two. I had many races and no single stock supercharged car touched mine. Fast forward to 2018 and I purchased a 2015 Audi S4 B8.5 supercharged car with another 6spd manual trans and have tuned it...i'll post that progress as this S4 is much...much faster yet in Stage 2 trim.
Resonated FI exhaust driving:
Non-Res FI Exhaust driving: (sorry for the wind noise...my city is windy as heck and cold all the time)
https://www.youtube.com/watch?v=CCkfRmgJ-9E&t=22s
Non-Res FI start up cold:
https://www.youtube.com/watch?v=DsYGxUBR4Jk
Non-Res FI driving interior:
https://www.youtube.com/watch?v=7tMMfAA1is0
Non-Res FI exhaust sound (again sorry about wind noise):
https://www.youtube.com/watch?v=CCkfRmgJ-9E&t=82s
https://www.youtube.com/watch?v=nu-SxL_9gkY
https://www.youtube.com/watch?v=9B3bAPWCXFQ
https://www.youtube.com/watch?v=YCeJzFTwgEI
Resonated FI exhaust driving:
Non-Res FI Exhaust driving: (sorry for the wind noise...my city is windy as heck and cold all the time)
https://www.youtube.com/watch?v=CCkfRmgJ-9E&t=22s
Non-Res FI start up cold:
https://www.youtube.com/watch?v=DsYGxUBR4Jk
Non-Res FI driving interior:
https://www.youtube.com/watch?v=7tMMfAA1is0
Non-Res FI exhaust sound (again sorry about wind noise):
https://www.youtube.com/watch?v=CCkfRmgJ-9E&t=82s
https://www.youtube.com/watch?v=nu-SxL_9gkY
https://www.youtube.com/watch?v=9B3bAPWCXFQ
https://www.youtube.com/watch?v=YCeJzFTwgEI