caleb_chambers
Registered User
when i owned a 91 merc cougar 3.8 auto, i ditched the enter exaust for kicks since the car was junk anyway and to gain cool sound/more power/mpg/etc, only to find out the there's like an o2 sensor (i think it was the o2 sensor) in the exhaust somehwere and the car started to miss out BIGTIME after like 1-2 days and ended up ****ing the engine up before i got around to replacing the exhaust