Scott Vincent Grissom

apparently both my cats on my '97 were shot, instead of replacing them the mech cleaned them out and drilled a hole in them. It drives like a bat out of hell now, before acceleration was spotty and weak. However it also sounds like a bat out of hell, and smells like hell(fuel). Is it normal to have a louder engine noise and a bit of a gassy smell from the exhaust pipe? will what he did save me gas (it obviously gave me more power)
thanks

asand1

iTrader: (1)

I suspect your car was overly rich to begin with, causing the cats to go bad. Now without the cats there to burn the excess fuel, it smells rich.

Amerikaner83

iTrader: (17)

and the main cat will probably suffer soon as well if it's still rich