used engine cleaner, to tidy up the engine bay of my car recently!! this meant i had to hose down the engine with water, causing it to run on 2-3 cylinders for bout 10 mins. problem is i left engine running, and in an attempt to regain the 4 cylinders kepr revving it. the sound conmin from the exhaust at that time was quality. blew my cat though. jus wonderin whether that woulkd have an effect on the sound of my backbox.

P.S. running on 4 cylinders again!!