it will effect ur fuel consumption a little bit laa.. not to say it wont affect at all, it will all depend on ur setup and the design of the muffler and bullet.. dont bother bout the FC if u r hunting for power.. ur heavy foot will contribute more effect than the exhaust system..
I'm planning to be a proud owner of a MR2. but before that i would like to know if the mantainance of the car very expensive?? are spare parts hard to come by?? how bout fuel comsumption?? and what other issues it...