Res Delete is a must for any RS5 Owner. 2021 RS5 Before and After with the Res-X Resonator Delete. 

I finally took the advice on getting a res delete kit and it was worth every penny. This small, inexpensive upgrade makes the RS5 sound like what it should straight off the lot. I always found the stock exhaust on this performance vehicle to sound muffled and dead, the res delete kit truly brought the car back to life. Let me know what you guys think and if you've also done this simple upgrade.
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