Well I washed my car 2 days ago, and once i drove my car my exhaust doesn't sound right.. Its not as loud as it was and its not as deep as it was. Right now it sounds like an exhaust with silencers on it.. By the way the brand name is OBX and yah quality isn't as good.. I have a feeling i messed up the exhaust because i accidentally got water on the inside part of the exhaust when i was wetting the back bumper.

 

hmm i duno cause i somtimes get water in mine, not alot but some water gets in and i dont seem to have that prob

 

just drive around and leave the car in the sun, the watter will evap and you'll be happy again

 

That's what I have been doing, I miss the deep sound of my exhaust..