1. JaseYpk

    Exhaust Backfiring & Sooty Exhaust

    My car has been backfiring since i got it really and the bumper around the exhaust is pretty sooty. It also smells nicely of petrol and isnt so economical. I've had a lot of people look at it and no one can seem to work it out, my last step is to take it to NI$$AN which i dont really want to do...